build: ship pre-built API bundle; images copy output instead of installing

- API: `pnpm build` bundles dist/ into apps/api/.output (esbuild), with
  Linux musl native packages for sharp and argon2 kept alongside
- docker/api.Dockerfile copies that output; no pnpm install on the server
- add dist/migrate.js (prisma migrate deploy equivalent, same
  _prisma_migrations table and lock) so the Prisma CLI is not needed at runtime
- pnpm-workspace: supportedArchitectures for linux/x64/musl
- admin: apps/admin/.env.production sets VITE_SITE_URL for the production build
- drop NPM_REGISTRY / SITE_URL build args from compose and .env.example
- gitignore: anchor node_modules rules so pre-built node_modules are committed
- README: describe the pre-built deploy flow

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>

apps/web/.output/server/node_modules/devalue/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "devalue",
+  "description": "Gets the job done when JSON.stringify can't",
+  "version": "6.0.3",
+  "repository": "sveltejs/devalue",
+  "sideEffects": false,
+  "exports": {
+    ".": {
+      "types": "./types/types.d.ts",
+      "import": "./src/index.js",
+      "default": "./src/index.js"
+    }
+  },
+  "files": [
+    "src",
+    "types"
+  ],
+  "types": "./types/types.d.ts",
+  "engines": {
+    "node": ">=18"
+  },
+  "devDependencies": {
+    "@changesets/cli": "^2.29.6",
+    "@js-temporal/polyfill": "^0.5.1",
+    "@types/node": "^24.12.0",
+    "prettier": "^3.2.4",
+    "publint": "^0.3.12",
+    "typescript": "^7.0.2",
+    "vite": "8.3.0",
+    "vitest": "5.0.1"
+  },
+  "license": "MIT",
+  "type": "module",
+  "scripts": {
+    "changeset:version": "changeset version",
+    "changeset:publish": "changeset publish",
+    "build": "tsc",
+    "test": "vitest run --project unit",
+    "test:unit": "vitest run --project unit",
+    "test:watch": "vitest --project unit",
+    "test:types": "tsc -p . --noEmit",
+    "check:format": "prettier --check .",
+    "format": "prettier --write .",
+    "bench": "node --allow-natives-syntax ./benchmarking/run.js",
+    "bench:compare": "node --allow-natives-syntax ./benchmarking/compare/index.js"
+  }
+}