fix(ci): resolve presubmit docs check and move plugin workflow

- Regenerate docs/tool-reference.md to match npm run docs output
- Remove overtime-ag-tests.yml (moved to omalleyandy-plugins repo)
- Add .venv/ to .gitignore to prevent local linting noise

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

Author: omalleyandy

.github/workflows/overtime-ag-tests.yml

@@ -150,5 +150,8 @@ log.txt
 
 .DS_Store
 
+# Python virtual environment (overtime-ag-plugin)
+.venv/
+
 # Claude Code config
 .claude/

.gitignore

@@ -298,12 +298,12 @@ so returned values have to be JSON-serializable.
 **Parameters:**
 
 - **function** (string) **(required)**: A JavaScript function declaration to be executed by the tool in the currently selected page.
-  Example without arguments: `() => {
+Example without arguments: `() => {
   return document.title
 }` or `async () => {
   return await fetch("example.com")
 }`.
-  Example with arguments: `(el) => {
+Example with arguments: `(el) => {
   return el.innerText;
 }`