fix(acadenice): use camelCase row keys in sync-block repo — Patch 027

The DatabaseModule registers a global CamelCasePlugin which converts
every column name (including SELECT aliases) from snake_case to
camelCase at runtime. The sync-block repo declared sql<{...}> result
types in snake_case (workspace_id, created_at, etc.) and accessed those
keys in mapRow / findUsages. At runtime kysely returned camelCase keys
so every property read was undefined, causing 'Invalid time value' on
new Date(undefined).toISOString().

Same pattern is likely present in graph.service.ts and backlinks
services — Patch 028 will sweep those.

Verified via curl: POST /api/acadenice/sync-blocks now returns 201 with
the full DTO.

Patch 027.

apps/server/src/core/acadenice/sync-blocks/repos/sync-block.repo.ts

@@ -24,11 +24,11 @@ export class SyncBlockRepo {
   ): Promise<SyncBlockResponseDto> {
     const result = await sql<{
       id: string;
-      workspace_id: string;
+      workspaceId: string;
       content: Record<string, unknown>;
-      created_by: string;
-      created_at: Date;
-      updated_at: Date;
+      createdBy: string;
+      createdAt: Date;
+      updatedAt: Date;
     }>`
       INSERT INTO acadenice_sync_block (workspace_id, content, created_by)
       VALUES (${workspaceId}, ${JSON.stringify(content)}::jsonb, ${createdBy})
@@ -44,11 +44,11 @@ export class SyncBlockRepo {
   ): Promise<SyncBlockResponseDto | null> {
     const result = await sql<{
       id: string;
-      workspace_id: string;
+      workspaceId: string;
       content: Record<string, unknown>;
-      created_by: string;
-      created_at: Date;
-      updated_at: Date;
+      createdBy: string;
+      createdAt: Date;
+      updatedAt: Date;
     }>`
       SELECT id, workspace_id, content, created_by, created_at, updated_at
       FROM acadenice_sync_block
@@ -67,11 +67,11 @@ export class SyncBlockRepo {
   ): Promise<SyncBlockResponseDto | null> {
     const result = await sql<{
       id: string;
-      workspace_id: string;
+      workspaceId: string;
       content: Record<string, unknown>;
-      created_by: string;
-      created_at: Date;
-      updated_at: Date;
+      createdBy: string;
+      createdAt: Date;
+      updatedAt: Date;
     }>`
       UPDATE acadenice_sync_block
       SET content = ${JSON.stringify(content)}::jsonb, updated_at = NOW()
@@ -101,7 +101,7 @@ export class SyncBlockRepo {
     id: string,
     workspaceId: string,
   ): Promise<Buffer | null> {
-    const result = await sql<{ yjs_state: Buffer | null }>`
+    const result = await sql<{ yjsState: Buffer | null }>`
       SELECT yjs_state
       FROM acadenice_sync_block
       WHERE id = ${id}
@@ -109,7 +109,7 @@ export class SyncBlockRepo {
     `.execute(this.db);
 
     if (result.rows.length === 0) return null;
-    return result.rows[0].yjs_state ?? null;
+    return result.rows[0].yjsState ?? null;
   }
 
   async delete(id: string, workspaceId: string): Promise<boolean> {
@@ -137,12 +137,15 @@ export class SyncBlockRepo {
     // Pages store their content as JSONB. We search for any object in the
     // content tree where type='syncBlock' and attrs->>'masterId' = blockId.
     // Using jsonb_path_exists for recursive search.
+    // CamelCasePlugin (in DatabaseModule) converts snake_case columns to
+    // camelCase at runtime, including SELECT aliases. So even though the SQL
+    // says "page_id" the row property is "pageId".
     const result = await sql<{
-      page_id: string;
+      pageId: string;
       title: string | null;
-      slug_id: string;
-      space_id: string;
-      workspace_id: string;
+      slugId: string;
+      spaceId: string;
+      workspaceId: string;
     }>`
       SELECT DISTINCT p.id AS page_id, p.title, p.slug_id, p.space_id, s.workspace_id
       FROM pages p
@@ -158,11 +161,11 @@ export class SyncBlockRepo {
     `.execute(this.db);
 
     return result.rows.map((r) => ({
-      pageId: r.page_id,
+      pageId: r.pageId,
       pageTitle: r.title,
-      slugId: r.slug_id,
-      spaceId: r.space_id,
-      workspaceId: r.workspace_id,
+      slugId: r.slugId,
+      spaceId: r.spaceId,
+      workspaceId: r.workspaceId,
     }));
   }
 
@@ -178,19 +181,19 @@ export class SyncBlockRepo {
 
   private mapRow(row: {
     id: string;
-    workspace_id: string;
+    workspaceId: string;
     content: Record<string, unknown>;
-    created_by: string;
-    created_at: Date | string;
-    updated_at: Date | string;
+    createdBy: string;
+    createdAt: Date | string;
+    updatedAt: Date | string;
   }): SyncBlockResponseDto {
     return {
       id: row.id,
-      workspaceId: row.workspace_id,
+      workspaceId: row.workspaceId,
       content: row.content,
-      createdBy: row.created_by,
-      createdAt: new Date(row.created_at).toISOString(),
-      updatedAt: new Date(row.updated_at).toISOString(),
+      createdBy: row.createdBy,
+      createdAt: new Date(row.createdAt).toISOString(),
+      updatedAt: new Date(row.updatedAt).toISOString(),
     };
   }
 }