Flatten to three packages + extract mizan-runtime

packages/
  mizan-runtime/   Framework-agnostic state engine (~150 lines)
                   Context registry, batched invalidation, fetch primitives
  mizan-django/    Django server adapter (was packages/mizan-rpc/adapters/django/)
                   Codegen moved to mizan-django/generate/
  mizan-react/     React adapter (was packages/mizan-csr/adapters/react/)

Removed premature abstractions: mizan-ast, mizan-schema, mizan-rpc,
mizan-csr, mizan-ssr stub packages. The actual architecture is three
concrete packages, not five abstract layers.

mizan-runtime implements the v1 spec: registerContext with params,
scoped invalidation via microtask batching, server-driven invalidation
from mutation responses, mizanFetch for context bundles, mizanCall for
mutations.

264 Django + 33 React tests pass.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/mizan-react/package.json

@@ -0,0 +1,85 @@
+{
+  "name": "@rythazhur/mizan",
+  "version": "0.1.1",
+  "type": "module",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    },
+    "./client": {
+      "types": "./dist/client/index.d.ts",
+      "import": "./dist/client/index.js"
+    },
+    "./client/react": {
+      "types": "./dist/client/react.d.ts",
+      "import": "./dist/client/react.js"
+    },
+    "./client/nextjs": {
+      "types": "./dist/client/nextjs.d.ts",
+      "import": "./dist/client/nextjs.js"
+    },
+    "./channels": {
+      "types": "./dist/channels/index.d.ts",
+      "import": "./dist/channels/index.js"
+    },
+    "./jwt": {
+      "types": "./dist/jwt/index.d.ts",
+      "import": "./dist/jwt/index.js"
+    },
+    "./allauth": {
+      "types": "./dist/allauth/index.d.ts",
+      "import": "./dist/allauth/index.js"
+    },
+    "./allauth/nextjs": {
+      "types": "./dist/allauth/nextjs.d.ts",
+      "import": "./dist/allauth/nextjs.js"
+    }
+  },
+  "bin": {
+    "mizan-generate": "./dist/generator/cli.mjs"
+  },
+  "scripts": {
+    "build": "tsc -p tsconfig.build.json && node -e \"require('fs').cpSync('src/generator','dist/generator',{recursive:true})\"",
+    "dev": "tsc -p tsconfig.build.json --watch",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:integration": "RUN_INTEGRATION_TESTS=true NEXT_PUBLIC_HOST_URL=http://localhost:8000 vitest run",
+    "prepublishOnly": "npm run build"
+  },
+  "peerDependencies": {
+    "react": ">=18",
+    "react-dom": ">=18"
+  },
+  "peerDependenciesMeta": {
+    "next": {
+      "optional": true
+    }
+  },
+  "dependencies": {
+    "ws": "^8.19.0"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.58.2",
+    "@simplewebauthn/browser": "^13.2.2",
+    "@testing-library/jest-dom": "^6.0.0",
+    "@testing-library/react": "^16.0.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@types/ws": "^8.5.0",
+    "jsdom": "^25.0.0",
+    "next": "^16.1.6",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "typescript": "^5.7.0",
+    "vitest": "^3.0.0",
+    "zod": "^4.3.6"
+  },
+  "optionalDependencies": {
+    "chokidar": "^4.0.0",
+    "minimatch": "^10.0.0",
+    "openapi-typescript": "^7.0.0"
+  }
+}