perf: docker + next.js build optimisation - dockerignore exclusions, BuildKit cache mounts, backend image reuse, memory limits, next.js bundle tree-shaking

.dockerignore

@@ -1,12 +1,54 @@
+# ── Node / NPM ─────────────────────────────────────────────────────────────
 node_modules
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# ── Next.js build artefacts ─────────────────────────────────────────────────
 .next
+out
+
+# ── Git / CI ────────────────────────────────────────────────────────────────
 .git
+.gitignore
+.github
+
+# ── Secrets / env files (injected at runtime via docker-compose env_file) ───
 .env
 .env.local
 .env.development.local
 .env.test.local
 .env.production.local
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-pnpm-debug.log*
+
+# ── Python artefacts ─────────────────────────────────────────────────────────
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+backend/__pycache__
+backend/celerybeat-schedule
+
+# ── IDE / OS ─────────────────────────────────────────────────────────────────
+.DS_Store
+Thumbs.db
+.vscode
+.idea
+
+# ── Heavy static data not needed in the image ────────────────────────────────
+dpps
+scratch
+*.pdf
+jee_advanced_full_90q.json
+neet_180_questions.json
+neet_sample_questions.md
+API_DOCUMENTATION.md
+PAGEWISE_API_DOCUMENTATION.md
+DESIGN_SYSTEM.md
+PRD.md
+admin_json_samples.md
+README.md
+
+# ── TypeScript build info ────────────────────────────────────────────────────
+tsconfig.tsbuildinfo