fix(orchestrator): symlink prisma schema for cross-env generate

Create apps/orchestrator/prisma/schema.prisma as a symlink pointing to
../../api/prisma/schema.prisma. This gives the orchestrator 'ownership'
of its local schema copy so Prisma does not traverse into the api package
looking for project-root context.

- CI: symlink resolves in the checked-out monorepo; prisma:generate works
- Docker: kaniko COPY follows symlinks, schema file is present after
  'COPY apps/orchestrator ./apps/orchestrator'; turbo build triggers
  prisma:generate and generates the client within orchestrator context

Revert prisma:generate script to canonical path (./prisma/schema.prisma).
Remove deprecated 'prisma' config key from package.json.
Simplify Dockerfile builder stage (no more manual generate RUN).

apps/orchestrator/Dockerfile

@@ -21,8 +21,7 @@ FROM base AS deps
 COPY packages/shared/package.json ./packages/shared/
 COPY packages/config/package.json ./packages/config/
 COPY apps/orchestrator/package.json ./apps/orchestrator/
-# Copy API prisma schema so prisma generate can run in the orchestrator build
-COPY apps/api/prisma ./apps/api/prisma
+# API schema is available via apps/orchestrator/prisma/schema.prisma symlink
 
 # Copy npm configuration for native binary architecture hints
 COPY .npmrc ./
@@ -48,9 +47,11 @@ COPY --from=deps /app/packages/shared/node_modules ./packages/shared/node_module
 COPY --from=deps /app/packages/config/node_modules ./packages/config/node_modules
 COPY --from=deps /app/apps/orchestrator/node_modules ./apps/orchestrator/node_modules
 
-# Copy API prisma schema and generate the Prisma client for the orchestrator
-COPY apps/api/prisma ./apps/api/prisma
-RUN pnpm --filter=@mosaic/orchestrator prisma:generate
+# apps/orchestrator/prisma/schema.prisma is a symlink → ../../api/prisma/schema.prisma
+# Docker COPY follows symlinks, so the schema file is already present after
+# "COPY apps/orchestrator ./apps/orchestrator" above.
+# pnpm turbo build runs prisma:generate first (which uses --schema=./prisma/schema.prisma)
+# from within the orchestrator package — no cross-package project-root issues.
 
 # Build the orchestrator app using TurboRepo
 RUN pnpm turbo build --filter=@mosaic/orchestrator

apps/orchestrator/package.json

@@ -47,6 +47,7 @@
     "@types/express": "^5.0.1",
     "@types/node": "^22.13.4",
     "@vitest/coverage-v8": "^4.0.18",
+    "prisma": "^6.19.2",
     "ts-node": "^10.9.2",
     "tsconfig-paths": "^4.2.0",
     "typescript": "^5.8.2",

apps/orchestrator/prisma/schema.prisma

@@ -0,0 +1 @@
+../../api/prisma/schema.prisma

pnpm-lock.yaml

@@ -389,6 +389,9 @@ importers:
       '@vitest/coverage-v8':
         specifier: ^4.0.18
         version: 4.0.18(vitest@4.0.18(@opentelemetry/api@1.9.0)(@types/node@22.19.7)(jiti@2.6.1)(jsdom@26.1.0)(terser@5.46.0)(tsx@4.21.0)(yaml@2.8.2))
+      prisma:
+        specifier: ^6.19.2
+        version: 6.19.2(magicast@0.3.5)(typescript@5.9.3)
       ts-node:
         specifier: ^10.9.2
         version: 10.9.2(@swc/core@1.15.11)(@types/node@22.19.7)(typescript@5.9.3)