move pi-llm-performance to monorepo, update README and add deno.json

packages/pi-llm-performance/README.md

@@ -1,22 +1,26 @@
 # pi-llm-performance
 
-LLM performance metrics extension
+LLM performance metrics extension — captures and displays TTFT, prefill, and generation speeds from pi agent turns.
 
-## How to install
+## Development
 
-Add to your global pi settings:
+This package lives in the `pi-extensions` monorepo.
 
 ```bash
-pi install /Users/willem/dev/spikes/llm/custom-coding-agent/packages/pi-llm-performance
+pnpm install          # workspace setup
+deno test             # run tests
 ```
 
-Or add manually to `~/.pi/agent/settings.json`:
+## Usage
 
-```
+Add to your pi settings (`~/.pi/agent/settings.json`):
+
+```json
+{
   "packages": [
-    "/Users/willem/dev/spikes/llm/custom-coding-agent/packages/pi-llm-performance",
-    ...
+    "../dev/spikes/llm/monotonic-pi-extensions/packages/pi-llm-performance"
   ]
+}
 ```
 
 Then reload pi:

packages/pi-llm-performance/deno.json

@@ -0,0 +1,8 @@
+{
+  "imports": {
+    "@std/assert": "jsr:@std/assert@^1.0.0"
+  },
+  "tasks": {
+    "test": "deno test src/"
+  }
+}

packages/pi-llm-performance/deno.lock

@@ -14,5 +14,10 @@
     "@std/internal@1.0.12": {
       "integrity": "972a634fd5bc34b242024402972cd5143eac68d8dffaca5eaa4dba30ce17b027"
     }
+  },
+  "workspace": {
+    "dependencies": [
+      "jsr:@std/assert@1"
+    ]
   }
 }