feat: add VISION.md and enforce Claude Agent SDK exclusivity in PR reviews

- Create VISION.md establishing AutoForge as a Claude Agent SDK wrapper
  exclusively, rejecting integrations with other AI SDKs/CLIs/platforms
- Update review-pr.md step 6 to make vision deviation a merge blocker
  (previously informational only) and auto-reject PRs modifying VISION.md
- Add .claude/launch.json with backend (uvicorn) and frontend (Vite)
  dev server configurations

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/launch.json

@@ -0,0 +1,17 @@
+{
+  "version": "0.0.1",
+  "configurations": [
+    {
+      "name": "backend",
+      "runtimeExecutable": "python",
+      "runtimeArgs": ["-m", "uvicorn", "server.main:app", "--host", "127.0.0.1", "--port", "8888", "--reload"],
+      "port": 8888
+    },
+    {
+      "name": "frontend",
+      "runtimeExecutable": "cmd",
+      "runtimeArgs": ["/c", "cd ui && npx vite"],
+      "port": 5173
+    }
+  ]
+}