diff --git a/bridge/src/domain/attribution.ts b/bridge/src/domain/attribution.ts
new file mode 100644
index 0000000..f4a69c8
--- /dev/null
+++ b/bridge/src/domain/attribution.ts
@@ -0,0 +1,82 @@
+import { Decimal } from 'decimal.js';
+import type { StatutAttribution } from './types.js';
+
+export interface AttributionProps {
+  id: number;
+  moduleId: number;
+  personneId: number;
+  heuresAttribuees: Decimal;
+  heuresRealisees?: Decimal;
+  dateDebut?: Date | null;
+  dateFin?: Date | null;
+  statut?: StatutAttribution;
+}
+
+const ZERO = new Decimal(0);
+
+export class Attribution {
+  public readonly id: number;
+  public readonly moduleId: number;
+  public readonly personneId: number;
+  public heuresAttribuees: Decimal;
+  public heuresRealisees: Decimal;
+  public dateDebut: Date | null;
+  public dateFin: Date | null;
+  public statut: StatutAttribution;
+
+  constructor(props: AttributionProps) {
+    if (props.heuresAttribuees.lte(0)) {
+      throw new Error('heuresAttribuees doit etre > 0');
+    }
+    if (props.heuresRealisees?.lt(0)) {
+      throw new Error('heuresRealisees doit etre >= 0');
+    }
+    if (props.dateDebut && props.dateFin && props.dateFin < props.dateDebut) {
+      throw new Error('dateFin doit etre >= dateDebut');
+    }
+
+    this.id = props.id;
+    this.moduleId = props.moduleId;
+    this.personneId = props.personneId;
+    this.heuresAttribuees = props.heuresAttribuees;
+    this.heuresRealisees = props.heuresRealisees ?? ZERO;
+    this.dateDebut = props.dateDebut ?? null;
+    this.dateFin = props.dateFin ?? null;
+    this.statut = props.statut ?? 'planifie';
+  }
+
+  isActive(): boolean {
+    return this.statut === 'planifie' || this.statut === 'en_cours';
+  }
+
+  demarrer(): void {
+    if (this.statut !== 'planifie') {
+      throw new Error(`Transition invalide ${this.statut} -> en_cours`);
+    }
+    this.statut = 'en_cours';
+  }
+
+  saisirHeuresRealisees(heures: Decimal): void {
+    if (this.statut === 'annule' || this.statut === 'realise') {
+      throw new Error(`Saisie heures impossible sur attribution ${this.statut}`);
+    }
+    if (heures.lt(0)) {
+      throw new Error('heures doit etre >= 0');
+    }
+    this.heuresRealisees = heures;
+  }
+
+  cloturer(): void {
+    if (this.statut !== 'en_cours' && this.statut !== 'planifie') {
+      throw new Error(`Transition invalide ${this.statut} -> realise`);
+    }
+    this.statut = 'realise';
+  }
+
+  annuler(_raison: string): void {
+    if (this.statut === 'realise') {
+      throw new Error('Une attribution realisee ne peut etre annulee');
+    }
+    this.statut = 'annule';
+  }
+}
diff --git a/bridge/src/domain/bloc.ts b/bridge/src/domain/bloc.ts
new file mode 100644
index 0000000..1733d8c
--- /dev/null
+++ b/bridge/src/domain/bloc.ts
@@ -0,0 +1,55 @@
+import { Decimal } from 'decimal.js';
+import type { Module } from './module.js';
+
+export interface BlocProps {
+  id: number;
+  formationId: number;
+  nom: string;
+  heuresPrevues: Decimal;
+  ordre?: number;
+  modules?: Module[];
+}
+
+const ZERO = new Decimal(0);
+
+export class Bloc {
+  public readonly id: number;
+  public readonly formationId: number;
+  public nom: string;
+  public heuresPrevues: Decimal;
+  public ordre: number;
+  public readonly modules: Module[];
+
+  constructor(props: BlocProps) {
+    if (props.heuresPrevues.lt(0)) {
+      throw new Error('heuresPrevues doit etre >= 0');
+    }
+    this.id = props.id;
+    this.formationId = props.formationId;
+    this.nom = props.nom;
+    this.heuresPrevues = props.heuresPrevues;
+    this.ordre = props.ordre ?? 0;
+    this.modules = props.modules ?? [];
+  }
+
+  heuresAttribuees(): Decimal {
+    return this.modules.reduce((acc, m) => acc.plus(m.heuresPrevues), ZERO);
+  }
+
+  heuresRestantes(): Decimal {
+    return this.heuresPrevues.minus(this.heuresAttribuees());
+  }
+
+  ajouterModule(module: Module): void {
+    if (this.modules.some((m) => m.id === module.id)) {
+      throw new Error(`Module ${module.id} deja present dans le bloc`);
+    }
+    const total = this.heuresAttribuees().plus(module.heuresPrevues);
+    if (total.gt(this.heuresPrevues)) {
+      throw new Error(
+        `Capacite bloc depassee: ${total.toString()} > ${this.heuresPrevues.toString()}`,
+      );
+    }
+    this.modules.push(module);
+  }
+}
diff --git a/bridge/src/domain/client.ts b/bridge/src/domain/client.ts
new file mode 100644
index 0000000..41f4605
--- /dev/null
+++ b/bridge/src/domain/client.ts
@@ -0,0 +1,61 @@
+import { Decimal } from 'decimal.js';
+import { Projet } from './projet.js';
+import type { StatutClient } from './types.js';
+
+export interface ClientProps {
+  id: number;
+  nom: string;
+  contactPrincipal?: string | null;
+  contactEmail?: string | null;
+  contactTelephone?: string | null;
+  secteur?: string | null;
+  notes?: string | null;
+  statut?: StatutClient;
+  projets?: Projet[];
+}
+
+export class Client {
+  public readonly id: number;
+  public nom: string;
+  public contactPrincipal: string | null;
+  public contactEmail: string | null;
+  public contactTelephone: string | null;
+  public secteur: string | null;
+  public notes: string | null;
+  public statut: StatutClient;
+  public readonly projets: Projet[];
+
+  constructor(props: ClientProps) {
+    this.id = props.id;
+    this.nom = props.nom;
+    this.contactPrincipal = props.contactPrincipal ?? null;
+    this.contactEmail = props.contactEmail ?? null;
+    this.contactTelephone = props.contactTelephone ?? null;
+    this.secteur = props.secteur ?? null;
+    this.notes = props.notes ?? null;
+    this.statut = props.statut ?? 'prospect';
+    this.projets = props.projets ?? [];
+  }
+
+  creerProjet(nom: string, nextId: number): Projet {
+    if (this.statut === 'archive') {
+      throw new Error('Client archive : creation projet impossible');
+    }
+    if (this.projets.some((p) => p.nom === nom)) {
+      throw new Error(`Projet ${nom} existe deja pour ce client`);
+    }
+    const projet = new Projet({
+      id: nextId,
+      clientId: this.id,
+      nom,
+      chargeHeures: new Decimal(0),
+      statut: 'devis',
+    });
+    this.projets.push(projet);
+    return projet;
+  }
+
+  archiver(): void {
+    this.statut = 'archive';
+  }
+}
diff --git a/bridge/src/domain/formation.ts b/bridge/src/domain/formation.ts
new file mode 100644
index 0000000..617ada8
--- /dev/null
+++ b/bridge/src/domain/formation.ts
@@ -0,0 +1,76 @@
+import { Decimal } from 'decimal.js';
+import type { Bloc } from './bloc.js';
+import type { Filiere, StatutFormation } from './types.js';
+
+export interface FormationProps {
+  id: number;
+  nom: string;
+  filiere?: Filiere | null;
+  heuresTotales: Decimal;
+  statut?: StatutFormation;
+  dateDebut?: Date | null;
+  dateFin?: Date | null;
+  blocs?: Bloc[];
+}
+
+const ZERO = new Decimal(0);
+
+export class Formation {
+  public readonly id: number;
+  public nom: string;
+  public filiere: Filiere | null;
+  public heuresTotales: Decimal;
+  public statut: StatutFormation;
+  public dateDebut: Date | null;
+  public dateFin: Date | null;
+  public readonly blocs: Bloc[];
+
+  constructor(props: FormationProps) {
+    if (props.heuresTotales.lt(0)) {
+      throw new Error('heuresTotales doit etre >= 0');
+    }
+    if (props.dateDebut && props.dateFin && props.dateFin < props.dateDebut) {
+      throw new Error('dateFin doit etre >= dateDebut');
+    }
+    this.id = props.id;
+    this.nom = props.nom;
+    this.filiere = props.filiere ?? null;
+    this.heuresTotales = props.heuresTotales;
+    this.statut = props.statut ?? 'draft';
+    this.dateDebut = props.dateDebut ?? null;
+    this.dateFin = props.dateFin ?? null;
+    this.blocs = props.blocs ?? [];
+  }
+
+  heuresAttribuees(): Decimal {
+    return this.blocs.reduce((acc, b) => acc.plus(b.heuresPrevues), ZERO);
+  }
+
+  heuresRestantes(): Decimal {
+    return this.heuresTotales.minus(this.heuresAttribuees());
+  }
+
+  activer(): void {
+    if (this.statut === 'archive') {
+      throw new Error('Formation archivee ne peut etre activee');
+    }
+    this.statut = 'actif';
+  }
+
+  archiver(): void {
+    this.statut = 'archive';
+  }
+
+  ajouterBloc(bloc: Bloc): void {
+    if (this.blocs.some((b) => b.id === bloc.id)) {
+      throw new Error(`Bloc ${bloc.id} deja present dans la formation`);
+    }
+    const total = this.heuresAttribuees().plus(bloc.heuresPrevues);
+    if (total.gt(this.heuresTotales)) {
+      throw new Error(
+        `Capacite formation depassee: ${total.toString()} > ${this.heuresTotales.toString()}`,
+      );
+    }
+    this.blocs.push(bloc);
+  }
+}
diff --git a/bridge/src/domain/index.ts b/bridge/src/domain/index.ts
new file mode 100644
index 0000000..3c3015f
--- /dev/null
+++ b/bridge/src/domain/index.ts
@@ -0,0 +1,20 @@
+export * from './types.js';
+export { Personne } from './personne.js';
+export type { PersonneProps } from './personne.js';
+export { Formation } from './formation.js';
+export type { FormationProps } from './formation.js';
+export { Bloc } from './bloc.js';
+export type { BlocProps } from './bloc.js';
+export { Module } from './module.js';
+export type { ModuleProps } from './module.js';
+export { Attribution } from './attribution.js';
+export type { AttributionProps } from './attribution.js';
+export { Client } from './client.js';
+export type { ClientProps } from './client.js';
+export { Projet } from './projet.js';
+export type { ProjetProps } from './projet.js';
+export { Tache } from './tache.js';
+export type { TacheProps } from './tache.js';
+export { Intervention } from './intervention.js';
+export type { InterventionProps } from './intervention.js';
+export * from './schemas.js';
diff --git a/bridge/src/domain/intervention.ts b/bridge/src/domain/intervention.ts
new file mode 100644
index 0000000..7dfdac4
--- /dev/null
+++ b/bridge/src/domain/intervention.ts
@@ -0,0 +1,46 @@
+import type { Decimal } from 'decimal.js';
+import type { StatutIntervention } from './types.js';
+
+export interface InterventionProps {
+  id: number;
+  tacheId: number;
+  personneId: number;
+  heures: Decimal;
+  date: Date;
+  notes?: string | null;
+  statut?: StatutIntervention;
+}
+
+export class Intervention {
+  public readonly id: number;
+  public readonly tacheId: number;
+  public readonly personneId: number;
+  public heures: Decimal;
+  public date: Date;
+  public notes: string | null;
+  public statut: StatutIntervention;
+
+  constructor(props: InterventionProps) {
+    if (props.heures.lte(0)) {
+      throw new Error('heures doit etre > 0');
+    }
+    this.id = props.id;
+    this.tacheId = props.tacheId;
+    this.personneId = props.personneId;
+    this.heures = props.heures;
+    this.date = props.date;
+    this.notes = props.notes ?? null;
+    this.statut = props.statut ?? 'realise';
+  }
+
+  isActive(): boolean {
+    return this.statut === 'planifie' || this.statut === 'realise';
+  }
+
+  annuler(_raison: string): void {
+    if (this.statut === 'annule') {
+      throw new Error('Intervention deja annulee');
+    }
+    this.statut = 'annule';
+  }
+}
diff --git a/bridge/src/domain/module.ts b/bridge/src/domain/module.ts
new file mode 100644
index 0000000..a7e42f3
--- /dev/null
+++ b/bridge/src/domain/module.ts
@@ -0,0 +1,123 @@
+import { Decimal } from 'decimal.js';
+import { logger } from '../lib/logger.js';
+import { Attribution } from './attribution.js';
+import type { Personne } from './personne.js';
+import type { StatutModule } from './types.js';
+
+export interface ModuleProps {
+  id: number;
+  blocId: number;
+  nom: string;
+  heuresPrevues: Decimal;
+  statut?: StatutModule;
+  attributions?: Attribution[];
+}
+
+const ZERO = new Decimal(0);
+
+export class Module {
+  public readonly id: number;
+  public readonly blocId: number;
+  public nom: string;
+  public heuresPrevues: Decimal;
+  public statut: StatutModule;
+  public readonly attributions: Attribution[];
+
+  constructor(props: ModuleProps) {
+    if (props.heuresPrevues.lt(0)) {
+      throw new Error('heuresPrevues doit etre >= 0');
+    }
+    this.id = props.id;
+    this.blocId = props.blocId;
+    this.nom = props.nom;
+    this.heuresPrevues = props.heuresPrevues;
+    this.statut = props.statut ?? 'a_attribuer';
+    this.attributions = props.attributions ?? [];
+  }
+
+  heuresAttribuees(): Decimal {
+    return this.attributions
+      .filter((a) => a.statut !== 'annule')
+      .reduce((acc, a) => acc.plus(a.heuresAttribuees), ZERO);
+  }
+
+  heuresRealisees(): Decimal {
+    return this.attributions
+      .filter((a) => a.statut !== 'annule')
+      .reduce((acc, a) => acc.plus(a.heuresRealisees), ZERO);
+  }
+
+  heuresRestantes(): Decimal {
+    return this.heuresPrevues.minus(this.heuresAttribuees());
+  }
+
+  /**
+   * Cree une attribution sur ce module pour `personne`.
+   * RG-01 : `SUM(attributions.heures) + heures <= heuresPrevues`.
+   * Warn si depassement de la capacite formation de la personne (n'echoue pas — decision de gestion).
+   */
+  creerAttribution(
+    personne: Personne,
+    heures: Decimal,
+    dateDebut: Date | null,
+    dateFin: Date | null,
+    nextId: number,
+  ): Attribution {
+    if (!personne.hasRole('formateur')) {
+      throw new Error('Personne doit avoir le role formateur');
+    }
+    if (personne.statut !== 'actif') {
+      throw new Error('Personne inactive : attribution interdite');
+    }
+    if (heures.lte(0)) {
+      throw new Error('heures doit etre > 0');
+    }
+    const total = this.heuresAttribuees().plus(heures);
+    if (total.gt(this.heuresPrevues)) {
+      throw new Error(
+        `RG-01: heures attribuees (${total.toString()}) > heuresPrevues (${this.heuresPrevues.toString()})`,
+      );
+    }
+    if (heures.gt(personne.heuresRestantesFormation())) {
+      logger.warn(
+        {
+          moduleId: this.id,
+          personneId: personne.id,
+          heures: heures.toString(),
+          restantes: personne.heuresRestantesFormation().toString(),
+        },
+        'Attribution depasse capacite formation restante de la personne',
+      );
+    }
+
+    const attribution = new Attribution({
+      id: nextId,
+      moduleId: this.id,
+      personneId: personne.id,
+      heuresAttribuees: heures,
+      dateDebut,
+      dateFin,
+      statut: 'planifie',
+    });
+    this.attributions.push(attribution);
+    personne._appliquerHeuresFormation(heures);
+    if (this.statut === 'a_attribuer') {
+      this.statut = 'attribue';
+    }
+    return attribution;
+  }
+
+  annuler(): void {
+    if (this.statut === 'realise') {
+      throw new Error('Module realise ne peut etre annule');
+    }
+    this.statut = 'annule';
+  }
+
+  cloturer(): void {
+    if (this.statut === 'annule') {
+      throw new Error('Module annule ne peut etre cloture');
+    }
+    this.statut = 'realise';
+  }
+}
diff --git a/bridge/src/domain/personne.ts b/bridge/src/domain/personne.ts
new file mode 100644
index 0000000..a0e95f0
--- /dev/null
+++ b/bridge/src/domain/personne.ts
@@ -0,0 +1,165 @@
+import { Decimal } from 'decimal.js';
+import { logger } from '../lib/logger.js';
+import type { Role, StatutPersonne } from './types.js';
+
+export interface PersonneProps {
+  id: number;
+  nom: string;
+  prenom: string;
+  email: string;
+  capaciteAnnuelle: Decimal;
+  splitFormationPct: Decimal;
+  splitAgencePct: Decimal;
+  roles: Set<Role>;
+  statut: StatutPersonne;
+  heuresAttribueesFormation?: Decimal;
+  heuresAttribueesAgence?: Decimal;
+}
+
+const ZERO = new Decimal(0);
+const HUNDRED = new Decimal(100);
+
+export class Personne {
+  public readonly id: number;
+  public nom: string;
+  public prenom: string;
+  public email: string;
+  public capaciteAnnuelle: Decimal;
+  public splitFormationPct: Decimal;
+  public splitAgencePct: Decimal;
+  public roles: Set<Role>;
+  public statut: StatutPersonne;
+
+  // Rollups projetes depuis l'aggregat — sources = ATTRIBUTION/INTERVENTION cote DB
+  private _heuresAttribueesFormation: Decimal;
+  private _heuresAttribueesAgence: Decimal;
+
+  constructor(props: PersonneProps) {
+    if (props.capaciteAnnuelle.lt(0)) {
+      throw new Error('capaciteAnnuelle doit etre >= 0');
+    }
+    if (props.splitFormationPct.lt(0) || props.splitFormationPct.gt(100)) {
+      throw new Error('splitFormationPct doit etre entre 0 et 100');
+    }
+    if (props.splitAgencePct.lt(0) || props.splitAgencePct.gt(100)) {
+      throw new Error('splitAgencePct doit etre entre 0 et 100');
+    }
+    if (!props.splitFormationPct.plus(props.splitAgencePct).equals(HUNDRED)) {
+      throw new Error('splitFormationPct + splitAgencePct doit egaler 100');
+    }
+
+    this.id = props.id;
+    this.nom = props.nom;
+    this.prenom = props.prenom;
+    this.email = props.email;
+    this.capaciteAnnuelle = props.capaciteAnnuelle;
+    this.splitFormationPct = props.splitFormationPct;
+    this.splitAgencePct = props.splitAgencePct;
+    this.roles = new Set(props.roles);
+    this.statut = props.statut;
+    this._heuresAttribueesFormation = props.heuresAttribueesFormation ?? ZERO;
+    this._heuresAttribueesAgence = props.heuresAttribueesAgence ?? ZERO;
+  }
+
+  get heuresAttribueesFormation(): Decimal {
+    return this._heuresAttribueesFormation;
+  }
+
+  get heuresAttribueesAgence(): Decimal {
+    return this._heuresAttribueesAgence;
+  }
+
+  capaciteFormation(): Decimal {
+    return this.capaciteAnnuelle.times(this.splitFormationPct).div(HUNDRED);
+  }
+
+  capaciteAgence(): Decimal {
+    return this.capaciteAnnuelle.times(this.splitAgencePct).div(HUNDRED);
+  }
+
+  heuresRestantesFormation(): Decimal {
+    return this.capaciteFormation().minus(this._heuresAttribueesFormation);
+  }
+
+  heuresRestantesAgence(): Decimal {
+    return this.capaciteAgence().minus(this._heuresAttribueesAgence);
+  }
+
+  heuresRestantesTotal(): Decimal {
+    return this.capaciteAnnuelle
+      .minus(this._heuresAttribueesFormation)
+      .minus(this._heuresAttribueesAgence);
+  }
+
+  hasRole(role: Role): boolean {
+    return this.roles.has(role);
+  }
+
+  ajouterRole(role: Role): void {
+    this.roles.add(role); // idempotent par construction du Set
+  }
+
+  /**
+   * Le retrait est bloque si la personne porte des allocations actives sur ce role
+   * — sinon on orphelinerait des Attributions/Interventions cote DB.
+   * Le caller fournit les compteurs car la classe ne connait pas ses aggregats children.
+   */
+  retirerRole(
+    role: Role,
+    opts?: { activeAttributions?: number; activeInterventions?: number },
+  ): void {
+    if (role === 'formateur' && (opts?.activeAttributions ?? 0) > 0) {
+      throw new Error(
+        'Impossible de retirer le role formateur : attributions actives encore liees',
+      );
+    }
+    if (role === 'developpeur' && (opts?.activeInterventions ?? 0) > 0) {
+      throw new Error(
+        'Impossible de retirer le role developpeur : interventions actives encore liees',
+      );
+    }
+    this.roles.delete(role);
+  }
+
+  activer(): void {
+    this.statut = 'actif';
+  }
+
+  inactiver(): void {
+    this.statut = 'inactif';
+  }
+
+  /** Mutation interne du rollup formation — appele par les aggregat methods. */
+  _appliquerHeuresFormation(delta: Decimal): void {
+    const next = this._heuresAttribueesFormation.plus(delta);
+    if (next.lt(0)) {
+      throw new Error('heuresAttribueesFormation ne peut pas devenir negatif');
+    }
+    if (next.gt(this.capaciteFormation())) {
+      logger.warn(
+        {
+          personneId: this.id,
+          next: next.toString(),
+          capacite: this.capaciteFormation().toString(),
+        },
+        'Personne en surcharge formation',
+      );
+    }
+    this._heuresAttribueesFormation = next;
+  }
+
+  /** Mutation interne du rollup agence. */
+  _appliquerHeuresAgence(delta: Decimal): void {
+    const next = this._heuresAttribueesAgence.plus(delta);
+    if (next.lt(0)) {
+      throw new Error('heuresAttribueesAgence ne peut pas devenir negatif');
+    }
+    if (next.gt(this.capaciteAgence())) {
+      logger.warn(
+        { personneId: this.id, next: next.toString(), capacite: this.capaciteAgence().toString() },
+        'Personne en surcharge agence',
+      );
+    }
+    this._heuresAttribueesAgence = next;
+  }
+}
diff --git a/bridge/src/domain/projet.ts b/bridge/src/domain/projet.ts
new file mode 100644
index 0000000..5534fb9
--- /dev/null
+++ b/bridge/src/domain/projet.ts
@@ -0,0 +1,90 @@
+import { Decimal } from 'decimal.js';
+import type { Formation } from './formation.js';
+import { Tache } from './tache.js';
+import type { ProjetType, StatutProjet } from './types.js';
+
+export interface ProjetProps {
+  id: number;
+  clientId: number;
+  nom: string;
+  type?: ProjetType | null;
+  chargeHeures: Decimal;
+  statut?: StatutProjet;
+  formationId?: number | null;
+  taches?: Tache[];
+}
+
+const ZERO = new Decimal(0);
+
+export class Projet {
+  public readonly id: number;
+  public readonly clientId: number;
+  public nom: string;
+  public type: ProjetType | null;
+  public chargeHeures: Decimal;
+  public statut: StatutProjet;
+  public formationId: number | null;
+  public readonly taches: Tache[];
+
+  constructor(props: ProjetProps) {
+    if (props.chargeHeures.lt(0)) {
+      throw new Error('chargeHeures doit etre >= 0');
+    }
+    this.id = props.id;
+    this.clientId = props.clientId;
+    this.nom = props.nom;
+    this.type = props.type ?? null;
+    this.chargeHeures = props.chargeHeures;
+    this.statut = props.statut ?? 'devis';
+    this.formationId = props.formationId ?? null;
+    this.taches = props.taches ?? [];
+  }
+
+  heuresAttribuees(): Decimal {
+    return this.taches.reduce((acc, t) => acc.plus(t.chargeHeures), ZERO);
+  }
+
+  heuresRealisees(): Decimal {
+    return this.taches.reduce((acc, t) => acc.plus(t.heuresRealisees()), ZERO);
+  }
+
+  heuresRestantes(): Decimal {
+    return this.chargeHeures.minus(this.heuresRealisees());
+  }
+
+  ajouterTache(titre: string, charge: Decimal, nextId: number): Tache {
+    if (this.statut === 'cloture' || this.statut === 'abandonne') {
+      throw new Error(`Impossible d'ajouter une tache : projet ${this.statut}`);
+    }
+    if (charge.lt(0)) {
+      throw new Error('charge doit etre >= 0');
+    }
+    const tache = new Tache({
+      id: nextId,
+      projetId: this.id,
+      titre,
+      chargeHeures: charge,
+      statut: 'todo',
+    });
+    this.taches.push(tache);
+    return tache;
+  }
+
+  lierFormationPedagogique(formation: Formation): void {
+    this.formationId = formation.id;
+  }
+
+  livrer(): void {
+    if (this.statut !== 'en_cours' && this.statut !== 'devis') {
+      throw new Error(`Transition invalide ${this.statut} -> livre`);
+    }
+    this.statut = 'livre';
+  }
+
+  cloturer(): void {
+    if (this.statut === 'abandonne') {
+      throw new Error('Projet abandonne ne peut etre cloture');
+    }
+    this.statut = 'cloture';
+  }
+}
diff --git a/bridge/src/domain/schemas.ts b/bridge/src/domain/schemas.ts
new file mode 100644
index 0000000..421e4f0
--- /dev/null
+++ b/bridge/src/domain/schemas.ts
@@ -0,0 +1,145 @@
+import { z } from 'zod';
+
+/**
+ * Schemas zod pour validation runtime au boundary HTTP/webhook.
+ * Convention : `decimal` est valide via `z.coerce.number()` puis converti en `Decimal` dans la mapping layer.
+ */
+
+export const RoleSchema = z.enum(['formateur', 'developpeur', 'admin', 'direction', 'support']);
+
+export const FiliereSchema = z.enum(['dev', 'graphisme', 'marketing', 'iot', 'cybersec']);
+
+export const PrioriteSchema = z.enum(['faible', 'normale', 'haute', 'critique']);
+
+export const ProjetTypeSchema = z.enum([
+  'site_web',
+  'app_mobile',
+  'api',
+  'infra',
+  'audit',
+  'support',
+  'autre',
+]);
+
+export const StatutPersonneSchema = z.enum(['actif', 'inactif']);
+export const StatutFormationSchema = z.enum(['draft', 'actif', 'termine', 'archive']);
+export const StatutModuleSchema = z.enum([
+  'a_attribuer',
+  'attribue',
+  'en_cours',
+  'realise',
+  'annule',
+]);
+export const StatutAttributionSchema = z.enum(['planifie', 'en_cours', 'realise', 'annule']);
+export const StatutClientSchema = z.enum(['prospect', 'actif', 'inactif', 'archive']);
+export const StatutProjetSchema = z.enum(['devis', 'en_cours', 'livre', 'cloture', 'abandonne']);
+export const StatutTacheSchema = z.enum(['todo', 'in_progress', 'review', 'done', 'abandoned']);
+export const StatutInterventionSchema = z.enum(['planifie', 'realise', 'annule']);
+
+export const PersonneSchema = z
+  .object({
+    id: z.number().int().nonnegative(),
+    nom: z.string().min(1).max(100),
+    prenom: z.string().min(1).max(100),
+    email: z.string().email(),
+    telephone: z.string().max(20).optional().nullable(),
+    capaciteAnnuelle: z.coerce.number().nonnegative(),
+    splitFormationPct: z.coerce.number().min(0).max(100),
+    splitAgencePct: z.coerce.number().min(0).max(100),
+    roles: z.array(RoleSchema),
+    statut: StatutPersonneSchema.default('actif'),
+    heuresAttribueesFormation: z.coerce.number().nonnegative().optional(),
+    heuresAttribueesAgence: z.coerce.number().nonnegative().optional(),
+  })
+  .refine((d) => d.splitFormationPct + d.splitAgencePct === 100, {
+    message: 'splits doivent sommer a 100',
+    path: ['splitFormationPct'],
+  });
+
+export const FormationSchema = z.object({
+  id: z.number().int().nonnegative(),
+  nom: z.string().min(1).max(200),
+  description: z.string().optional().nullable(),
+  filiere: FiliereSchema.optional().nullable(),
+  heuresTotales: z.coerce.number().nonnegative(),
+  statut: StatutFormationSchema.default('draft'),
+  dateDebut: z.coerce.date().optional().nullable(),
+  dateFin: z.coerce.date().optional().nullable(),
+});
+
+export const BlocSchema = z.object({
+  id: z.number().int().nonnegative(),
+  formationId: z.number().int().nonnegative(),
+  nom: z.string().min(1).max(200),
+  heuresPrevues: z.coerce.number().nonnegative(),
+  ordre: z.number().int().nonnegative().default(0),
+});
+
+export const ModuleSchema = z.object({
+  id: z.number().int().nonnegative(),
+  blocId: z.number().int().nonnegative(),
+  nom: z.string().min(1).max(200),
+  heuresPrevues: z.coerce.number().nonnegative(),
+  statut: StatutModuleSchema.default('a_attribuer'),
+});
+
+export const AttributionSchema = z.object({
+  id: z.number().int().nonnegative(),
+  moduleId: z.number().int().nonnegative(),
+  personneId: z.number().int().nonnegative(),
+  heuresAttribuees: z.coerce.number().positive(),
+  heuresRealisees: z.coerce.number().nonnegative().default(0),
+  dateDebut: z.coerce.date().optional().nullable(),
+  dateFin: z.coerce.date().optional().nullable(),
+  statut: StatutAttributionSchema.default('planifie'),
+});
+
+export const ClientSchema = z.object({
+  id: z.number().int().nonnegative(),
+  nom: z.string().min(1).max(200),
+  contactPrincipal: z.string().max(200).optional().nullable(),
+  contactEmail: z.string().email().optional().nullable(),
+  contactTelephone: z.string().max(20).optional().nullable(),
+  secteur: z.string().max(100).optional().nullable(),
+  notes: z.string().optional().nullable(),
+  statut: StatutClientSchema.default('prospect'),
+});
+
+export const ProjetSchema = z.object({
+  id: z.number().int().nonnegative(),
+  clientId: z.number().int().nonnegative(),
+  nom: z.string().min(1).max(200),
+  type: ProjetTypeSchema.optional().nullable(),
+  chargeHeures: z.coerce.number().nonnegative(),
+  statut: StatutProjetSchema.default('devis'),
+  formationId: z.number().int().nonnegative().optional().nullable(),
+});
+
+export const TacheSchema = z.object({
+  id: z.number().int().nonnegative(),
+  projetId: z.number().int().nonnegative(),
+  titre: z.string().min(1).max(200),
+  chargeHeures: z.coerce.number().nonnegative(),
+  priorite: PrioriteSchema.optional().nullable(),
+  statut: StatutTacheSchema.default('todo'),
+});
+
+export const InterventionSchema = z.object({
+  id: z.number().int().nonnegative(),
+  tacheId: z.number().int().nonnegative(),
+  personneId: z.number().int().nonnegative(),
+  heures: z.coerce.number().positive(),
+  date: z.coerce.date(),
+  notes: z.string().optional().nullable(),
+  statut: StatutInterventionSchema.default('realise'),
+});
+
+export type PersonneInput = z.infer<typeof PersonneSchema>;
+export type FormationInput = z.infer<typeof FormationSchema>;
+export type BlocInput = z.infer<typeof BlocSchema>;
+export type ModuleInput = z.infer<typeof ModuleSchema>;
+export type AttributionInput = z.infer<typeof AttributionSchema>;
+export type ClientInput = z.infer<typeof ClientSchema>;
+export type ProjetInput = z.infer<typeof ProjetSchema>;
+export type TacheInput = z.infer<typeof TacheSchema>;
+export type InterventionInput = z.infer<typeof InterventionSchema>;
diff --git a/bridge/src/domain/tache.ts b/bridge/src/domain/tache.ts
new file mode 100644
index 0000000..e04c690
--- /dev/null
+++ b/bridge/src/domain/tache.ts
@@ -0,0 +1,90 @@
+import { Decimal } from 'decimal.js';
+import { Intervention } from './intervention.js';
+import type { Personne } from './personne.js';
+import type { Priorite, StatutTache } from './types.js';
+
+export interface TacheProps {
+  id: number;
+  projetId: number;
+  titre: string;
+  chargeHeures: Decimal;
+  priorite?: Priorite | null;
+  statut?: StatutTache;
+  interventions?: Intervention[];
+}
+
+const ZERO = new Decimal(0);
+
+export class Tache {
+  public readonly id: number;
+  public readonly projetId: number;
+  public titre: string;
+  public chargeHeures: Decimal;
+  public priorite: Priorite | null;
+  public statut: StatutTache;
+  public readonly interventions: Intervention[];
+
+  constructor(props: TacheProps) {
+    if (props.chargeHeures.lt(0)) {
+      throw new Error('chargeHeures doit etre >= 0');
+    }
+    this.id = props.id;
+    this.projetId = props.projetId;
+    this.titre = props.titre;
+    this.chargeHeures = props.chargeHeures;
+    this.priorite = props.priorite ?? null;
+    this.statut = props.statut ?? 'todo';
+    this.interventions = props.interventions ?? [];
+  }
+
+  heuresRealisees(): Decimal {
+    return this.interventions
+      .filter((i) => i.statut !== 'annule')
+      .reduce((acc, i) => acc.plus(i.heures), ZERO);
+  }
+
+  creerIntervention(personne: Personne, heures: Decimal, date: Date, nextId: number): Intervention {
+    if (!personne.hasRole('developpeur')) {
+      throw new Error('Personne doit avoir le role developpeur');
+    }
+    if (personne.statut !== 'actif') {
+      throw new Error('Personne inactive : intervention interdite');
+    }
+    if (heures.lte(0)) {
+      throw new Error('heures doit etre > 0');
+    }
+
+    const intervention = new Intervention({
+      id: nextId,
+      tacheId: this.id,
+      personneId: personne.id,
+      heures,
+      date,
+      statut: 'realise',
+    });
+    this.interventions.push(intervention);
+    personne._appliquerHeuresAgence(heures);
+    return intervention;
+  }
+
+  marquerInProgress(): void {
+    if (this.statut === 'done' || this.statut === 'abandoned') {
+      throw new Error(`Transition invalide ${this.statut} -> in_progress`);
+    }
+    this.statut = 'in_progress';
+  }
+
+  marquerReview(): void {
+    if (this.statut !== 'in_progress') {
+      throw new Error(`Transition invalide ${this.statut} -> review`);
+    }
+    this.statut = 'review';
+  }
+
+  marquerDone(): void {
+    if (this.statut === 'abandoned' || this.statut === 'done') {
+      throw new Error(`Transition invalide ${this.statut} -> done`);
+    }
+    this.statut = 'done';
+  }
+}
diff --git a/bridge/src/domain/types.ts b/bridge/src/domain/types.ts
new file mode 100644
index 0000000..c5e2121
--- /dev/null
+++ b/bridge/src/domain/types.ts
@@ -0,0 +1,39 @@
+/**
+ * Types et value objects partages du domaine.
+ *
+ * Statuts modelises en discriminated unions plutot qu'en enums TS — ESM-friendly,
+ * pas de runtime cost, narrowing precis au point d'usage.
+ */
+
+export type Role = 'formateur' | 'developpeur' | 'admin' | 'direction' | 'support';
+
+export const ROLES: readonly Role[] = [
+  'formateur',
+  'developpeur',
+  'admin',
+  'direction',
+  'support',
+] as const;
+
+export type Filiere = 'dev' | 'graphisme' | 'marketing' | 'iot' | 'cybersec';
+
+export type Priorite = 'faible' | 'normale' | 'haute' | 'critique';
+
+export type ProjetType =
+  | 'site_web'
+  | 'app_mobile'
+  | 'api'
+  | 'infra'
+  | 'audit'
+  | 'support'
+  | 'autre';
+
+// Statuts par entite — chacun ferme son cycle de vie
+export type StatutPersonne = 'actif' | 'inactif';
+export type StatutFormation = 'draft' | 'actif' | 'termine' | 'archive';
+export type StatutModule = 'a_attribuer' | 'attribue' | 'en_cours' | 'realise' | 'annule';
+export type StatutAttribution = 'planifie' | 'en_cours' | 'realise' | 'annule';
+export type StatutClient = 'prospect' | 'actif' | 'inactif' | 'archive';
+export type StatutProjet = 'devis' | 'en_cours' | 'livre' | 'cloture' | 'abandonne';
+export type StatutTache = 'todo' | 'in_progress' | 'review' | 'done' | 'abandoned';
+export type StatutIntervention = 'planifie' | 'realise' | 'annule';
diff --git a/bridge/tests/domain/attribution.test.ts b/bridge/tests/domain/attribution.test.ts
new file mode 100644
index 0000000..be8e0e3
--- /dev/null
+++ b/bridge/tests/domain/attribution.test.ts
@@ -0,0 +1,110 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Attribution } from '../../src/domain/attribution.js';
+
+const make = (overrides: Partial<ConstructorParameters<typeof Attribution>[0]> = {}) =>
+  new Attribution({
+    id: 1,
+    moduleId: 10,
+    personneId: 5,
+    heuresAttribuees: new Decimal(20),
+    ...overrides,
+  });
+
+describe('Attribution — constructeur', () => {
+  it('cree une attribution valide', () => {
+    const a = make();
+    expect(a.statut).toBe('planifie');
+    expect(a.heuresRealisees.toNumber()).toBe(0);
+  });
+
+  it('throw si heuresAttribuees <= 0', () => {
+    expect(() => make({ heuresAttribuees: new Decimal(0) })).toThrow();
+    expect(() => make({ heuresAttribuees: new Decimal(-5) })).toThrow();
+  });
+
+  it('throw si heuresRealisees < 0', () => {
+    expect(() => make({ heuresRealisees: new Decimal(-1) })).toThrow();
+  });
+
+  it('throw si dateFin < dateDebut', () => {
+    expect(() =>
+      make({ dateDebut: new Date('2026-02-01'), dateFin: new Date('2026-01-01') }),
+    ).toThrow();
+  });
+});
+
+describe('Attribution — transitions de statut', () => {
+  it('demarrer: planifie -> en_cours', () => {
+    const a = make();
+    a.demarrer();
+    expect(a.statut).toBe('en_cours');
+  });
+
+  it('demarrer invalide depuis realise', () => {
+    const a = make({ statut: 'realise' });
+    expect(() => a.demarrer()).toThrow();
+  });
+
+  it('cloturer: en_cours -> realise', () => {
+    const a = make({ statut: 'en_cours' });
+    a.cloturer();
+    expect(a.statut).toBe('realise');
+  });
+
+  it('cloturer: planifie -> realise (skip en_cours autorise)', () => {
+    const a = make();
+    a.cloturer();
+    expect(a.statut).toBe('realise');
+  });
+
+  it('cloturer invalide depuis annule', () => {
+    const a = make({ statut: 'annule' });
+    expect(() => a.cloturer()).toThrow();
+  });
+
+  it('annuler depuis planifie OK', () => {
+    const a = make();
+    a.annuler('client desistement');
+    expect(a.statut).toBe('annule');
+  });
+
+  it('annuler invalide depuis realise', () => {
+    const a = make({ statut: 'realise' });
+    expect(() => a.annuler('motif')).toThrow();
+  });
+});
+
+describe('Attribution — saisirHeuresRealisees', () => {
+  it('cas nominal', () => {
+    const a = make();
+    a.saisirHeuresRealisees(new Decimal(15));
+    expect(a.heuresRealisees.toNumber()).toBe(15);
+  });
+
+  it('throw si heures < 0', () => {
+    const a = make();
+    expect(() => a.saisirHeuresRealisees(new Decimal(-1))).toThrow();
+  });
+
+  it('throw si attribution annulee', () => {
+    const a = make({ statut: 'annule' });
+    expect(() => a.saisirHeuresRealisees(new Decimal(5))).toThrow();
+  });
+
+  it('throw si attribution realisee', () => {
+    const a = make({ statut: 'realise' });
+    expect(() => a.saisirHeuresRealisees(new Decimal(5))).toThrow();
+  });
+});
+
+describe('Attribution — isActive', () => {
+  it('planifie et en_cours sont actifs', () => {
+    expect(make().isActive()).toBe(true);
+    expect(make({ statut: 'en_cours' }).isActive()).toBe(true);
+  });
+  it('realise et annule ne sont pas actifs', () => {
+    expect(make({ statut: 'realise' }).isActive()).toBe(false);
+    expect(make({ statut: 'annule' }).isActive()).toBe(false);
+  });
+});
diff --git a/bridge/tests/domain/bloc.test.ts b/bridge/tests/domain/bloc.test.ts
new file mode 100644
index 0000000..383295a
--- /dev/null
+++ b/bridge/tests/domain/bloc.test.ts
@@ -0,0 +1,42 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Bloc } from '../../src/domain/bloc.js';
+import { Module } from '../../src/domain/module.js';
+
+const makeModule = (id: number, h: number) =>
+  new Module({ id, blocId: 1, nom: `M${id}`, heuresPrevues: new Decimal(h) });
+
+describe('Bloc', () => {
+  it('cree un bloc vide', () => {
+    const b = new Bloc({ id: 1, formationId: 100, nom: 'B1', heuresPrevues: new Decimal(120) });
+    expect(b.modules.length).toBe(0);
+    expect(b.heuresAttribuees().toNumber()).toBe(0);
+    expect(b.heuresRestantes().toNumber()).toBe(120);
+  });
+
+  it('throw si heuresPrevues < 0', () => {
+    expect(
+      () => new Bloc({ id: 1, formationId: 100, nom: 'B1', heuresPrevues: new Decimal(-1) }),
+    ).toThrow();
+  });
+
+  it('ajouterModule rollup correct', () => {
+    const b = new Bloc({ id: 1, formationId: 100, nom: 'B1', heuresPrevues: new Decimal(120) });
+    b.ajouterModule(makeModule(1, 40));
+    b.ajouterModule(makeModule(2, 60));
+    expect(b.heuresAttribuees().toNumber()).toBe(100);
+    expect(b.heuresRestantes().toNumber()).toBe(20);
+  });
+
+  it('throw si module duplique', () => {
+    const b = new Bloc({ id: 1, formationId: 100, nom: 'B1', heuresPrevues: new Decimal(120) });
+    b.ajouterModule(makeModule(1, 40));
+    expect(() => b.ajouterModule(makeModule(1, 10))).toThrow(/deja present/);
+  });
+
+  it('throw si capacite bloc depassee', () => {
+    const b = new Bloc({ id: 1, formationId: 100, nom: 'B1', heuresPrevues: new Decimal(50) });
+    b.ajouterModule(makeModule(1, 30));
+    expect(() => b.ajouterModule(makeModule(2, 30))).toThrow(/depassee/);
+  });
+});
diff --git a/bridge/tests/domain/client.test.ts b/bridge/tests/domain/client.test.ts
new file mode 100644
index 0000000..919fac5
--- /dev/null
+++ b/bridge/tests/domain/client.test.ts
@@ -0,0 +1,36 @@
+import { describe, expect, it } from 'vitest';
+import { Client } from '../../src/domain/client.js';
+
+describe('Client', () => {
+  it('cree un client valide', () => {
+    const c = new Client({ id: 1, nom: 'Acme' });
+    expect(c.statut).toBe('prospect');
+    expect(c.projets.length).toBe(0);
+  });
+
+  it('creerProjet cas nominal', () => {
+    const c = new Client({ id: 1, nom: 'Acme' });
+    const p = c.creerProjet('Site corpo', 100);
+    expect(p.id).toBe(100);
+    expect(p.clientId).toBe(1);
+    expect(c.projets.length).toBe(1);
+  });
+
+  it('creerProjet throw si nom duplique', () => {
+    const c = new Client({ id: 1, nom: 'Acme' });
+    c.creerProjet('Site corpo', 100);
+    expect(() => c.creerProjet('Site corpo', 101)).toThrow(/existe deja/);
+  });
+
+  it('creerProjet bloque si client archive', () => {
+    const c = new Client({ id: 1, nom: 'Acme' });
+    c.archiver();
+    expect(() => c.creerProjet('X', 1)).toThrow(/archive/);
+  });
+
+  it('archiver transition', () => {
+    const c = new Client({ id: 1, nom: 'Acme' });
+    c.archiver();
+    expect(c.statut).toBe('archive');
+  });
+});
diff --git a/bridge/tests/domain/formation.test.ts b/bridge/tests/domain/formation.test.ts
new file mode 100644
index 0000000..bafe41b
--- /dev/null
+++ b/bridge/tests/domain/formation.test.ts
@@ -0,0 +1,66 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Bloc } from '../../src/domain/bloc.js';
+import { Formation } from '../../src/domain/formation.js';
+
+describe('Formation', () => {
+  it('cree une formation valide', () => {
+    const f = new Formation({ id: 1, nom: 'BTS SIO', heuresTotales: new Decimal(1400) });
+    expect(f.statut).toBe('draft');
+    expect(f.heuresRestantes().toNumber()).toBe(1400);
+  });
+
+  it('throw si heuresTotales < 0', () => {
+    expect(() => new Formation({ id: 1, nom: 'X', heuresTotales: new Decimal(-1) })).toThrow();
+  });
+
+  it('throw si dateFin < dateDebut', () => {
+    expect(
+      () =>
+        new Formation({
+          id: 1,
+          nom: 'X',
+          heuresTotales: new Decimal(100),
+          dateDebut: new Date('2026-09-01'),
+          dateFin: new Date('2026-08-01'),
+        }),
+    ).toThrow();
+  });
+
+  it('activer / archiver transitions', () => {
+    const f = new Formation({ id: 1, nom: 'X', heuresTotales: new Decimal(100) });
+    f.activer();
+    expect(f.statut).toBe('actif');
+    f.archiver();
+    expect(f.statut).toBe('archive');
+  });
+
+  it('activer apres archive est interdit', () => {
+    const f = new Formation({ id: 1, nom: 'X', heuresTotales: new Decimal(100) });
+    f.archiver();
+    expect(() => f.activer()).toThrow();
+  });
+
+  it('ajouterBloc + heuresRestantes rollup', () => {
+    const f = new Formation({ id: 1, nom: 'X', heuresTotales: new Decimal(300) });
+    const b1 = new Bloc({ id: 1, formationId: 1, nom: 'B1', heuresPrevues: new Decimal(100) });
+    const b2 = new Bloc({ id: 2, formationId: 1, nom: 'B2', heuresPrevues: new Decimal(150) });
+    f.ajouterBloc(b1);
+    f.ajouterBloc(b2);
+    expect(f.heuresAttribuees().toNumber()).toBe(250);
+    expect(f.heuresRestantes().toNumber()).toBe(50);
+  });
+
+  it('throw si bloc duplique', () => {
+    const f = new Formation({ id: 1, nom: 'X', heuresTotales: new Decimal(300) });
+    const b = new Bloc({ id: 1, formationId: 1, nom: 'B1', heuresPrevues: new Decimal(100) });
+    f.ajouterBloc(b);
+    expect(() => f.ajouterBloc(b)).toThrow(/deja present/);
+  });
+
+  it('throw si depassement capacite formation', () => {
+    const f = new Formation({ id: 1, nom: 'X', heuresTotales: new Decimal(100) });
+    const b = new Bloc({ id: 1, formationId: 1, nom: 'B1', heuresPrevues: new Decimal(150) });
+    expect(() => f.ajouterBloc(b)).toThrow(/depassee/);
+  });
+});
diff --git a/bridge/tests/domain/intervention.test.ts b/bridge/tests/domain/intervention.test.ts
new file mode 100644
index 0000000..c4cf98f
--- /dev/null
+++ b/bridge/tests/domain/intervention.test.ts
@@ -0,0 +1,43 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Intervention } from '../../src/domain/intervention.js';
+
+const make = (overrides: Partial<ConstructorParameters<typeof Intervention>[0]> = {}) =>
+  new Intervention({
+    id: 1,
+    tacheId: 10,
+    personneId: 5,
+    heures: new Decimal(4),
+    date: new Date('2026-05-01'),
+    ...overrides,
+  });
+
+describe('Intervention', () => {
+  it('cree une intervention valide', () => {
+    const i = make();
+    expect(i.statut).toBe('realise');
+    expect(i.isActive()).toBe(true);
+  });
+
+  it('throw si heures <= 0', () => {
+    expect(() => make({ heures: new Decimal(0) })).toThrow();
+    expect(() => make({ heures: new Decimal(-1) })).toThrow();
+  });
+
+  it('annuler depuis realise', () => {
+    const i = make();
+    i.annuler('erreur saisie');
+    expect(i.statut).toBe('annule');
+    expect(i.isActive()).toBe(false);
+  });
+
+  it('throw si annule deja annulee', () => {
+    const i = make({ statut: 'annule' });
+    expect(() => i.annuler('test')).toThrow();
+  });
+
+  it('isActive false sur annule', () => {
+    expect(make({ statut: 'annule' }).isActive()).toBe(false);
+    expect(make({ statut: 'planifie' }).isActive()).toBe(true);
+  });
+});
diff --git a/bridge/tests/domain/module.test.ts b/bridge/tests/domain/module.test.ts
new file mode 100644
index 0000000..57991ae
--- /dev/null
+++ b/bridge/tests/domain/module.test.ts
@@ -0,0 +1,150 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Module } from '../../src/domain/module.js';
+import { Personne } from '../../src/domain/personne.js';
+import type { Role } from '../../src/domain/types.js';
+
+const formateurActif = () =>
+  new Personne({
+    id: 1,
+    nom: 'X',
+    prenom: 'Y',
+    email: 'x@y.fr',
+    capaciteAnnuelle: new Decimal(1000),
+    splitFormationPct: new Decimal(50),
+    splitAgencePct: new Decimal(50),
+    roles: new Set<Role>(['formateur']),
+    statut: 'actif',
+  });
+
+describe('Module — constructeur', () => {
+  it('cree un module valide', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    expect(m.statut).toBe('a_attribuer');
+  });
+
+  it('throw si heuresPrevues < 0', () => {
+    expect(
+      () => new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(-1) }),
+    ).toThrow();
+  });
+});
+
+describe('Module — creerAttribution happy path', () => {
+  it('cree attribution + maj rollups + statut module', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    const p = formateurActif();
+    const a = m.creerAttribution(p, new Decimal(20), null, null, 100);
+    expect(a.id).toBe(100);
+    expect(m.attributions.length).toBe(1);
+    expect(m.heuresAttribuees().toNumber()).toBe(20);
+    expect(p.heuresAttribueesFormation.toNumber()).toBe(20);
+    expect(m.statut).toBe('attribue');
+  });
+});
+
+describe('Module — creerAttribution validations', () => {
+  it('throw si personne sans role formateur', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    const p = formateurActif();
+    p.retirerRole('formateur');
+    p.ajouterRole('developpeur');
+    expect(() => m.creerAttribution(p, new Decimal(10), null, null, 1)).toThrow(/formateur/);
+  });
+
+  it('throw si personne inactive', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    const p = formateurActif();
+    p.inactiver();
+    expect(() => m.creerAttribution(p, new Decimal(10), null, null, 1)).toThrow(/inactiv/);
+  });
+
+  it('throw si heures <= 0', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    const p = formateurActif();
+    expect(() => m.creerAttribution(p, new Decimal(0), null, null, 1)).toThrow();
+  });
+
+  it('RG-01 violation : SUM(heures) > heuresPrevues', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    const p = formateurActif();
+    m.creerAttribution(p, new Decimal(30), null, null, 1);
+    expect(() => m.creerAttribution(p, new Decimal(15), null, null, 2)).toThrow(/RG-01/);
+  });
+
+  it('warning si heures > capacite formation restante de la personne (ne throw pas)', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(1000) });
+    const p = new Personne({
+      id: 1,
+      nom: 'X',
+      prenom: 'Y',
+      email: 'x@y.fr',
+      capaciteAnnuelle: new Decimal(100),
+      splitFormationPct: new Decimal(50),
+      splitAgencePct: new Decimal(50),
+      roles: new Set<Role>(['formateur']),
+      statut: 'actif',
+    });
+    // capacite formation = 50. On attribue 80.
+    const a = m.creerAttribution(p, new Decimal(80), null, null, 1);
+    expect(a.heuresAttribuees.toNumber()).toBe(80);
+    expect(p.heuresAttribueesFormation.toNumber()).toBe(80);
+  });
+
+  it('RG-01 ignore les attributions annulees', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    const p = formateurActif();
+    const a1 = m.creerAttribution(p, new Decimal(40), null, null, 1);
+    a1.annuler('test');
+    // La nouvelle attribution doit etre acceptee maintenant.
+    const a2 = m.creerAttribution(p, new Decimal(20), null, null, 2);
+    expect(a2.heuresAttribuees.toNumber()).toBe(20);
+  });
+});
+
+describe('Module — heuresRealisees / heuresRestantes', () => {
+  it('calcule heures realisees en ignorant annulations', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(50) });
+    const p = formateurActif();
+    const a = m.creerAttribution(p, new Decimal(30), null, null, 1);
+    a.saisirHeuresRealisees(new Decimal(10));
+    expect(m.heuresRealisees().toNumber()).toBe(10);
+    expect(m.heuresRestantes().toNumber()).toBe(20);
+  });
+});
+
+describe('Module — transitions de statut', () => {
+  it('cloturer', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    m.cloturer();
+    expect(m.statut).toBe('realise');
+  });
+
+  it('annuler depuis a_attribuer', () => {
+    const m = new Module({ id: 1, blocId: 10, nom: 'M1', heuresPrevues: new Decimal(40) });
+    m.annuler();
+    expect(m.statut).toBe('annule');
+  });
+
+  it('annuler bloque depuis realise', () => {
+    const m = new Module({
+      id: 1,
+      blocId: 10,
+      nom: 'M1',
+      heuresPrevues: new Decimal(40),
+      statut: 'realise',
+    });
+    expect(() => m.annuler()).toThrow();
+  });
+
+  it('cloturer bloque depuis annule', () => {
+    const m = new Module({
+      id: 1,
+      blocId: 10,
+      nom: 'M1',
+      heuresPrevues: new Decimal(40),
+      statut: 'annule',
+    });
+    expect(() => m.cloturer()).toThrow();
+  });
+});
diff --git a/bridge/tests/domain/personne.test.ts b/bridge/tests/domain/personne.test.ts
new file mode 100644
index 0000000..6294cb6
--- /dev/null
+++ b/bridge/tests/domain/personne.test.ts
@@ -0,0 +1,177 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Personne } from '../../src/domain/personne.js';
+import type { Role } from '../../src/domain/types.js';
+
+const baseProps = (overrides: Partial<ConstructorParameters<typeof Personne>[0]> = {}) => ({
+  id: 1,
+  nom: 'Dupont',
+  prenom: 'Pierre',
+  email: 'pierre@acadenice.fr',
+  capaciteAnnuelle: new Decimal(1000),
+  splitFormationPct: new Decimal(60),
+  splitAgencePct: new Decimal(40),
+  roles: new Set<Role>(['formateur']),
+  statut: 'actif' as const,
+  ...overrides,
+});
+
+describe('Personne — constructeur', () => {
+  it('cree une personne valide', () => {
+    const p = new Personne(baseProps());
+    expect(p.id).toBe(1);
+    expect(p.statut).toBe('actif');
+  });
+
+  it('throw si splits != 100', () => {
+    expect(
+      () =>
+        new Personne(
+          baseProps({ splitFormationPct: new Decimal(70), splitAgencePct: new Decimal(40) }),
+        ),
+    ).toThrow(/100/);
+  });
+
+  it('throw si capaciteAnnuelle < 0', () => {
+    expect(() => new Personne(baseProps({ capaciteAnnuelle: new Decimal(-1) }))).toThrow();
+  });
+
+  it('throw si splitFormationPct hors [0,100]', () => {
+    expect(
+      () =>
+        new Personne(
+          baseProps({ splitFormationPct: new Decimal(-10), splitAgencePct: new Decimal(110) }),
+        ),
+    ).toThrow();
+  });
+
+  it('throw si splitAgencePct hors [0,100]', () => {
+    expect(
+      () =>
+        new Personne(
+          baseProps({ splitFormationPct: new Decimal(150), splitAgencePct: new Decimal(-50) }),
+        ),
+    ).toThrow();
+  });
+
+  it('admin pur capacite=0 splits=0/100 — accepte uniquement si somme=100', () => {
+    const p = new Personne(
+      baseProps({
+        capaciteAnnuelle: new Decimal(0),
+        splitFormationPct: new Decimal(0),
+        splitAgencePct: new Decimal(100),
+        roles: new Set<Role>(['admin']),
+      }),
+    );
+    expect(p.capaciteAnnuelle.toNumber()).toBe(0);
+  });
+});
+
+describe('Personne — calculs heures restantes', () => {
+  it('cas nominal split 60/40, capacite 1000', () => {
+    const p = new Personne(baseProps());
+    expect(p.capaciteFormation().toNumber()).toBe(600);
+    expect(p.capaciteAgence().toNumber()).toBe(400);
+    expect(p.heuresRestantesFormation().toNumber()).toBe(600);
+    expect(p.heuresRestantesAgence().toNumber()).toBe(400);
+    expect(p.heuresRestantesTotal().toNumber()).toBe(1000);
+  });
+
+  it('avec heures attribuees', () => {
+    const p = new Personne(
+      baseProps({
+        heuresAttribueesFormation: new Decimal(150),
+        heuresAttribueesAgence: new Decimal(100),
+      }),
+    );
+    expect(p.heuresRestantesFormation().toNumber()).toBe(450);
+    expect(p.heuresRestantesAgence().toNumber()).toBe(300);
+    expect(p.heuresRestantesTotal().toNumber()).toBe(750);
+  });
+
+  it('cas zero capacite', () => {
+    const p = new Personne(
+      baseProps({
+        capaciteAnnuelle: new Decimal(0),
+        splitFormationPct: new Decimal(50),
+        splitAgencePct: new Decimal(50),
+      }),
+    );
+    expect(p.heuresRestantesTotal().toNumber()).toBe(0);
+    expect(p.heuresRestantesFormation().toNumber()).toBe(0);
+  });
+});
+
+describe('Personne — gestion roles', () => {
+  it('ajouterRole idempotent', () => {
+    const p = new Personne(baseProps());
+    p.ajouterRole('formateur');
+    p.ajouterRole('formateur');
+    expect(p.roles.size).toBe(1);
+  });
+
+  it('ajouterRole nouveau', () => {
+    const p = new Personne(baseProps());
+    p.ajouterRole('developpeur');
+    expect(p.hasRole('developpeur')).toBe(true);
+    expect(p.roles.size).toBe(2);
+  });
+
+  it('retirerRole sans attributions actives', () => {
+    const p = new Personne(baseProps());
+    p.retirerRole('formateur');
+    expect(p.hasRole('formateur')).toBe(false);
+  });
+
+  it('retirerRole formateur bloque si attributions actives', () => {
+    const p = new Personne(baseProps());
+    expect(() => p.retirerRole('formateur', { activeAttributions: 2 })).toThrow(/attributions/);
+  });
+
+  it('retirerRole developpeur bloque si interventions actives', () => {
+    const p = new Personne(baseProps({ roles: new Set<Role>(['formateur', 'developpeur']) }));
+    expect(() => p.retirerRole('developpeur', { activeInterventions: 1 })).toThrow(/interventions/);
+  });
+});
+
+describe('Personne — transitions de statut', () => {
+  it('activer / inactiver', () => {
+    const p = new Personne(baseProps({ statut: 'inactif' }));
+    p.activer();
+    expect(p.statut).toBe('actif');
+    p.inactiver();
+    expect(p.statut).toBe('inactif');
+  });
+});
+
+describe('Personne — mutations rollups', () => {
+  it('appliquer heures formation accumule', () => {
+    const p = new Personne(baseProps());
+    p._appliquerHeuresFormation(new Decimal(100));
+    p._appliquerHeuresFormation(new Decimal(50));
+    expect(p.heuresAttribueesFormation.toNumber()).toBe(150);
+  });
+
+  it('appliquer heures agence accumule', () => {
+    const p = new Personne(baseProps());
+    p._appliquerHeuresAgence(new Decimal(80));
+    expect(p.heuresAttribueesAgence.toNumber()).toBe(80);
+  });
+
+  it('throw si rollup formation devient negatif', () => {
+    const p = new Personne(baseProps());
+    expect(() => p._appliquerHeuresFormation(new Decimal(-10))).toThrow();
+  });
+
+  it('throw si rollup agence devient negatif', () => {
+    const p = new Personne(baseProps());
+    expect(() => p._appliquerHeuresAgence(new Decimal(-5))).toThrow();
+  });
+
+  it('warn quand surcharge formation (depasse capacite)', () => {
+    const p = new Personne(baseProps({ capaciteAnnuelle: new Decimal(100) }));
+    // capacite formation = 60. Apply 80 → warn mais accepte.
+    p._appliquerHeuresFormation(new Decimal(80));
+    expect(p.heuresAttribueesFormation.toNumber()).toBe(80);
+  });
+});
diff --git a/bridge/tests/domain/projet.test.ts b/bridge/tests/domain/projet.test.ts
new file mode 100644
index 0000000..4821b3b
--- /dev/null
+++ b/bridge/tests/domain/projet.test.ts
@@ -0,0 +1,112 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Formation } from '../../src/domain/formation.js';
+import { Projet } from '../../src/domain/projet.js';
+
+describe('Projet', () => {
+  it('cree un projet valide', () => {
+    const p = new Projet({ id: 1, clientId: 5, nom: 'Site corpo', chargeHeures: new Decimal(80) });
+    expect(p.statut).toBe('devis');
+    expect(p.heuresRestantes().toNumber()).toBe(80);
+  });
+
+  it('throw si chargeHeures < 0', () => {
+    expect(
+      () => new Projet({ id: 1, clientId: 5, nom: 'X', chargeHeures: new Decimal(-1) }),
+    ).toThrow();
+  });
+
+  it('ajouterTache cas nominal', () => {
+    const p = new Projet({ id: 1, clientId: 5, nom: 'X', chargeHeures: new Decimal(80) });
+    const t = p.ajouterTache('Setup repo', new Decimal(2), 100);
+    expect(t.titre).toBe('Setup repo');
+    expect(p.taches.length).toBe(1);
+    expect(p.heuresAttribuees().toNumber()).toBe(2);
+  });
+
+  it('ajouterTache bloque si projet cloture', () => {
+    const p = new Projet({
+      id: 1,
+      clientId: 5,
+      nom: 'X',
+      chargeHeures: new Decimal(80),
+      statut: 'cloture',
+    });
+    expect(() => p.ajouterTache('T', new Decimal(2), 1)).toThrow();
+  });
+
+  it('ajouterTache bloque si projet abandonne', () => {
+    const p = new Projet({
+      id: 1,
+      clientId: 5,
+      nom: 'X',
+      chargeHeures: new Decimal(80),
+      statut: 'abandonne',
+    });
+    expect(() => p.ajouterTache('T', new Decimal(2), 1)).toThrow();
+  });
+
+  it('ajouterTache throw si charge < 0', () => {
+    const p = new Projet({ id: 1, clientId: 5, nom: 'X', chargeHeures: new Decimal(80) });
+    expect(() => p.ajouterTache('T', new Decimal(-2), 1)).toThrow();
+  });
+
+  it('lierFormationPedagogique', () => {
+    const p = new Projet({ id: 1, clientId: 5, nom: 'X', chargeHeures: new Decimal(80) });
+    const f = new Formation({ id: 42, nom: 'Bootcamp', heuresTotales: new Decimal(700) });
+    p.lierFormationPedagogique(f);
+    expect(p.formationId).toBe(42);
+  });
+
+  it('livrer transitions', () => {
+    const p = new Projet({ id: 1, clientId: 5, nom: 'X', chargeHeures: new Decimal(80) });
+    p.livrer();
+    expect(p.statut).toBe('livre');
+  });
+
+  it('livrer depuis en_cours OK', () => {
+    const p = new Projet({
+      id: 1,
+      clientId: 5,
+      nom: 'X',
+      chargeHeures: new Decimal(80),
+      statut: 'en_cours',
+    });
+    p.livrer();
+    expect(p.statut).toBe('livre');
+  });
+
+  it('livrer bloque depuis cloture', () => {
+    const p = new Projet({
+      id: 1,
+      clientId: 5,
+      nom: 'X',
+      chargeHeures: new Decimal(80),
+      statut: 'cloture',
+    });
+    expect(() => p.livrer()).toThrow();
+  });
+
+  it('cloturer transition', () => {
+    const p = new Projet({
+      id: 1,
+      clientId: 5,
+      nom: 'X',
+      chargeHeures: new Decimal(80),
+      statut: 'livre',
+    });
+    p.cloturer();
+    expect(p.statut).toBe('cloture');
+  });
+
+  it('cloturer bloque depuis abandonne', () => {
+    const p = new Projet({
+      id: 1,
+      clientId: 5,
+      nom: 'X',
+      chargeHeures: new Decimal(80),
+      statut: 'abandonne',
+    });
+    expect(() => p.cloturer()).toThrow();
+  });
+});
diff --git a/bridge/tests/domain/schemas.test.ts b/bridge/tests/domain/schemas.test.ts
new file mode 100644
index 0000000..430f15b
--- /dev/null
+++ b/bridge/tests/domain/schemas.test.ts
@@ -0,0 +1,125 @@
+import { describe, expect, it } from 'vitest';
+import {
+  AttributionSchema,
+  BlocSchema,
+  ClientSchema,
+  FormationSchema,
+  InterventionSchema,
+  ModuleSchema,
+  PersonneSchema,
+  ProjetSchema,
+  TacheSchema,
+} from '../../src/domain/schemas.js';
+
+describe('schemas zod', () => {
+  it('PersonneSchema valide', () => {
+    const r = PersonneSchema.parse({
+      id: 1,
+      nom: 'Doe',
+      prenom: 'John',
+      email: 'john@a.fr',
+      capaciteAnnuelle: '1000',
+      splitFormationPct: 50,
+      splitAgencePct: 50,
+      roles: ['formateur'],
+    });
+    expect(r.statut).toBe('actif');
+    expect(r.capaciteAnnuelle).toBe(1000);
+  });
+
+  it('PersonneSchema rejette splits qui ne somment pas a 100', () => {
+    expect(() =>
+      PersonneSchema.parse({
+        id: 1,
+        nom: 'X',
+        prenom: 'Y',
+        email: 'x@y.fr',
+        capaciteAnnuelle: 1000,
+        splitFormationPct: 50,
+        splitAgencePct: 40,
+        roles: ['formateur'],
+      }),
+    ).toThrow();
+  });
+
+  it('PersonneSchema rejette email invalide', () => {
+    expect(() =>
+      PersonneSchema.parse({
+        id: 1,
+        nom: 'X',
+        prenom: 'Y',
+        email: 'not-an-email',
+        capaciteAnnuelle: 1000,
+        splitFormationPct: 50,
+        splitAgencePct: 50,
+        roles: ['formateur'],
+      }),
+    ).toThrow();
+  });
+
+  it('FormationSchema valide avec defaults', () => {
+    const r = FormationSchema.parse({ id: 1, nom: 'BTS', heuresTotales: 500 });
+    expect(r.statut).toBe('draft');
+  });
+
+  it('BlocSchema rejette heuresPrevues negative', () => {
+    expect(() =>
+      BlocSchema.parse({ id: 1, formationId: 1, nom: 'B', heuresPrevues: -5 }),
+    ).toThrow();
+  });
+
+  it('ModuleSchema valide', () => {
+    const r = ModuleSchema.parse({ id: 1, blocId: 1, nom: 'M', heuresPrevues: 20 });
+    expect(r.statut).toBe('a_attribuer');
+  });
+
+  it('AttributionSchema rejette heuresAttribuees = 0', () => {
+    expect(() =>
+      AttributionSchema.parse({ id: 1, moduleId: 1, personneId: 1, heuresAttribuees: 0 }),
+    ).toThrow();
+  });
+
+  it('ClientSchema valide minimal', () => {
+    const r = ClientSchema.parse({ id: 1, nom: 'Acme' });
+    expect(r.statut).toBe('prospect');
+  });
+
+  it('ProjetSchema valide avec formationId', () => {
+    const r = ProjetSchema.parse({
+      id: 1,
+      clientId: 1,
+      nom: 'P',
+      chargeHeures: 100,
+      formationId: 5,
+    });
+    expect(r.formationId).toBe(5);
+  });
+
+  it('TacheSchema valide minimal', () => {
+    const r = TacheSchema.parse({ id: 1, projetId: 1, titre: 'T', chargeHeures: 4 });
+    expect(r.statut).toBe('todo');
+  });
+
+  it('InterventionSchema parse date string', () => {
+    const r = InterventionSchema.parse({
+      id: 1,
+      tacheId: 1,
+      personneId: 1,
+      heures: 3,
+      date: '2026-05-01',
+    });
+    expect(r.date instanceof Date).toBe(true);
+  });
+
+  it('InterventionSchema rejette heures = 0', () => {
+    expect(() =>
+      InterventionSchema.parse({
+        id: 1,
+        tacheId: 1,
+        personneId: 1,
+        heures: 0,
+        date: '2026-05-01',
+      }),
+    ).toThrow();
+  });
+});
diff --git a/bridge/tests/domain/tache.test.ts b/bridge/tests/domain/tache.test.ts
new file mode 100644
index 0000000..3296dc2
--- /dev/null
+++ b/bridge/tests/domain/tache.test.ts
@@ -0,0 +1,121 @@
+import { Decimal } from 'decimal.js';
+import { describe, expect, it } from 'vitest';
+import { Personne } from '../../src/domain/personne.js';
+import { Tache } from '../../src/domain/tache.js';
+import type { Role } from '../../src/domain/types.js';
+
+const developpeur = (overrides: Partial<ConstructorParameters<typeof Personne>[0]> = {}) =>
+  new Personne({
+    id: 1,
+    nom: 'Dev',
+    prenom: 'Jane',
+    email: 'jane@acadenice.fr',
+    capaciteAnnuelle: new Decimal(1000),
+    splitFormationPct: new Decimal(20),
+    splitAgencePct: new Decimal(80),
+    roles: new Set<Role>(['developpeur']),
+    statut: 'actif',
+    ...overrides,
+  });
+
+describe('Tache — constructeur', () => {
+  it('cree une tache valide', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    expect(t.statut).toBe('todo');
+  });
+
+  it('throw si charge < 0', () => {
+    expect(
+      () => new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(-1) }),
+    ).toThrow();
+  });
+});
+
+describe('Tache — creerIntervention', () => {
+  it('happy path', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    const p = developpeur();
+    const i = t.creerIntervention(p, new Decimal(3), new Date('2026-05-01'), 100);
+    expect(i.heures.toNumber()).toBe(3);
+    expect(t.heuresRealisees().toNumber()).toBe(3);
+    expect(p.heuresAttribueesAgence.toNumber()).toBe(3);
+  });
+
+  it('throw si role != developpeur', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    const p = developpeur({ roles: new Set<Role>(['formateur']) });
+    expect(() => t.creerIntervention(p, new Decimal(3), new Date(), 1)).toThrow(/developpeur/);
+  });
+
+  it('throw si heures <= 0', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    const p = developpeur();
+    expect(() => t.creerIntervention(p, new Decimal(0), new Date(), 1)).toThrow();
+    expect(() => t.creerIntervention(p, new Decimal(-1), new Date(), 1)).toThrow();
+  });
+
+  it('throw si personne inactive', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    const p = developpeur({ statut: 'inactif' });
+    expect(() => t.creerIntervention(p, new Decimal(2), new Date(), 1)).toThrow(/inactiv/);
+  });
+
+  it('annulation exclue du rollup heuresRealisees', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    const p = developpeur();
+    const i1 = t.creerIntervention(p, new Decimal(3), new Date(), 1);
+    t.creerIntervention(p, new Decimal(2), new Date(), 2);
+    i1.annuler('test');
+    expect(t.heuresRealisees().toNumber()).toBe(2);
+  });
+});
+
+describe('Tache — transitions de statut', () => {
+  it('marquerInProgress', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    t.marquerInProgress();
+    expect(t.statut).toBe('in_progress');
+  });
+
+  it('marquerReview depuis in_progress', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    t.marquerInProgress();
+    t.marquerReview();
+    expect(t.statut).toBe('review');
+  });
+
+  it('marquerReview invalide depuis todo', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    expect(() => t.marquerReview()).toThrow();
+  });
+
+  it('marquerDone depuis review', () => {
+    const t = new Tache({ id: 1, projetId: 5, titre: 'T1', chargeHeures: new Decimal(8) });
+    t.marquerInProgress();
+    t.marquerReview();
+    t.marquerDone();
+    expect(t.statut).toBe('done');
+  });
+
+  it('marquerDone bloque depuis done', () => {
+    const t = new Tache({
+      id: 1,
+      projetId: 5,
+      titre: 'T1',
+      chargeHeures: new Decimal(8),
+      statut: 'done',
+    });
+    expect(() => t.marquerDone()).toThrow();
+  });
+
+  it('marquerInProgress bloque depuis abandoned', () => {
+    const t = new Tache({
+      id: 1,
+      projetId: 5,
+      titre: 'T1',
+      chargeHeures: new Decimal(8),
+      statut: 'abandoned',
+    });
+    expect(() => t.marquerInProgress()).toThrow();
+  });
+});
diff --git a/bridge/vitest.config.ts b/bridge/vitest.config.ts
index 93a2a9f..1386e24 100644
--- a/bridge/vitest.config.ts
+++ b/bridge/vitest.config.ts
@@ -11,10 +11,13 @@ export default defineConfig({
       include: ['src/**/*.ts'],
       exclude: ['src/**/*.test.ts', 'src/index.ts'],
       thresholds: {
-        lines: 0,
-        functions: 0,
-        branches: 0,
-        statements: 0,
+        // Threshold strict applique uniquement sur src/domain. Adapters et lib seront couverts au bloc 3+.
+        'src/domain/**': {
+          lines: 80,
+          functions: 80,
+          branches: 80,
+          statements: 80,
+        },
       },
     },
     passWithNoTests: true,