fix(ci): show warning icon for zero-test suites instead of failure

- Replace context.sha (merge commit SHA) with
  context.payload.pull_request.head.sha so the staleness guard
  compares the correct values and the comment actually gets posted
- Add continue-on-error to download-artifact so cancelled runs
  gracefully fall through to the "no test results" message

packages/browseros-agent/README.md

@@ -75,24 +75,26 @@ packages/
 
 ### Setup
 
-```bash
-# Install dependencies, generate agent GraphQL output,
-# and prepare WXT types for apps/agent
-bun run dev-setup
+Requires [process-compose](https://github.com/F1bonacc1/process-compose):
 
-# Run the apps
-bun run start:server
-bun run start:agent
+```bash
+brew install process-compose
 ```
 
-`bun run dev-setup` is a preflight command only. It does not manage `.env` files.
+```bash
+# Copy environment files for each package
+cp apps/server/.env.example apps/server/.env.development
+cp apps/agent/.env.example apps/agent/.env.development
+cp apps/server/.env.production.example apps/server/.env.production
 
-It runs the following in order:
+# Start the full dev environment
+process-compose up
+```
+
+The `process-compose up` command runs the following in order:
 1. `bun install` — installs dependencies
-2. `bun run codegen:agent` — generates agent GraphQL code
-3. `bun run prepare:agent` — generates WXT type output
-
-If you want the broader dev harness after setup, use `bun run dev:watch`, `bun run dev:watch:new`, or `bun run dev:manual`.
+2. `bun --cwd apps/agent codegen` — generates agent code
+3. `bun --cwd apps/server start` and `bun --cwd apps/agent dev` — starts server and agent in parallel
 
 ### Environment Variables
 

packages/browseros-agent/package.json

@@ -10,7 +10,6 @@
   ],
   "scripts": {
     "postinstall": "bun run build:agent-sdk",
-    "dev-setup": "bun install && bun run codegen:agent && bun run prepare:agent",
     "dev:watch": "./tools/dev/run.sh watch",
     "dev:watch:new": "./tools/dev/run.sh watch --new",
     "dev:manual": "./tools/dev/run.sh watch --manual",
@@ -27,8 +26,7 @@
     "build:agent:dev": "FORCE_COLOR=1 bun run --filter @browseros/agent --elide-lines=0 build:dev",
     "build:agent": "bun run codegen:agent && bun run --filter @browseros/agent build",
     "build:agent-sdk": "bun run --filter @browseros-ai/agent-sdk build",
-    "codegen:agent": "bun --cwd apps/agent graphql-codegen --config codegen.ts",
-    "prepare:agent": "VITE_PUBLIC_BROWSEROS_API=${VITE_PUBLIC_BROWSEROS_API:-http://127.0.0.1:9105} bun --cwd apps/agent wxt prepare",
+    "codegen:agent": "bun run --filter @browseros/agent codegen",
     "test": "bun run test:tools && bun run test:integration",
     "test:tools": "bun run --filter @browseros/server test:tools",
     "test:integration": "bun run --filter @browseros/server test:integration",