fix: API key save network error — add ENCRYPTION_KEY env and auto-migrate

The "Netzwerkfehler beim Speichern des Schlüssels" was caused by two issues:
1. ENCRYPTION_KEY env var was not passed to the Docker container, so
   AES-256-GCM encrypt() threw at runtime on every POST/PATCH.
2. The 0003_tenant_api_keys migration was not in the drizzle journal
   and no migration runner existed in the Docker image.

Changes:
- docker-compose.yml: pass ENCRYPTION_KEY to app container
- .env.example: document ENCRYPTION_KEY with generation command
- .gitignore: allow .env.example to be tracked
- Dockerfile: include drizzle/ migrations and entrypoint script
- entrypoint.sh: run migrations before starting the app
- migrate.mjs: runtime migration script using drizzle-orm migrator
- drizzle journal: register 0003_tenant_api_keys migration

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.env.example

@@ -0,0 +1,23 @@
+# Database
+DATABASE_URL=postgresql://legalai:legalai@localhost:5432/legalai
+
+# Authentication
+NEXTAUTH_URL=http://localhost:3000
+NEXTAUTH_SECRET=your-secret-here
+
+# AI Providers (set the one you use: anthropic, openai, ollama)
+AI_PROVIDER=anthropic
+ANTHROPIC_API_KEY=
+OPENAI_API_KEY=
+
+# Ollama (local LLM)
+OLLAMA_URL=http://localhost:11434
+OLLAMA_MODEL=llama3
+
+# Search
+MEILISEARCH_URL=http://localhost:7700
+MEILISEARCH_API_KEY=masterKey
+
+# Encryption (required for per-tenant API key storage)
+# Generate with: node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
+ENCRYPTION_KEY=

.gitignore

@@ -32,6 +32,7 @@ yarn-error.log*
 
 # env files (can opt-in for committing if needed)
 .env*
+!.env.example
 
 # vercel
 .vercel

Dockerfile

@@ -19,8 +19,12 @@ RUN adduser --system --uid 1001 nextjs
 COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+COPY --from=builder --chown=nextjs:nodejs /app/drizzle ./drizzle
+COPY --from=builder --chown=nextjs:nodejs /app/migrate.mjs ./migrate.mjs
+COPY --from=builder --chown=nextjs:nodejs /app/entrypoint.sh ./entrypoint.sh
+RUN chmod +x ./entrypoint.sh
 USER nextjs
 EXPOSE 3000
 ENV PORT=3000
 ENV HOSTNAME="0.0.0.0"
-CMD ["node", "server.js"]
+ENTRYPOINT ["./entrypoint.sh"]

docker-compose.yml

@@ -12,6 +12,7 @@ services:
       - AI_PROVIDER=${AI_PROVIDER:-anthropic}
       - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY}
       - OPENAI_API_KEY=${OPENAI_API_KEY}
+      - ENCRYPTION_KEY=${ENCRYPTION_KEY}
     depends_on:
       postgres:
         condition: service_healthy

drizzle/meta/_journal.json

@@ -22,6 +22,13 @@
       "when": 1775729813628,
       "tag": "0002_wide_grandmaster",
       "breakpoints": true
+    },
+    {
+      "idx": 3,
+      "version": "7",
+      "when": 1775775900000,
+      "tag": "0003_tenant_api_keys",
+      "breakpoints": true
     }
   ]
 }

entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+node migrate.mjs
+exec node server.js

migrate.mjs

@@ -0,0 +1,20 @@
+// Runtime migration script — runs drizzle SQL migrations against the database.
+// Used by the Docker entrypoint before starting the app.
+
+import { drizzle } from 'drizzle-orm/node-postgres';
+import { migrate } from 'drizzle-orm/node-postgres/migrator';
+import pg from 'pg';
+
+const pool = new pg.Pool({ connectionString: process.env.DATABASE_URL });
+
+try {
+  const db = drizzle(pool);
+  console.log('Running database migrations...');
+  await migrate(db, { migrationsFolder: './drizzle' });
+  console.log('Migrations complete.');
+} catch (err) {
+  console.error('Migration failed:', err);
+  process.exit(1);
+} finally {
+  await pool.end();
+}