refactor: rename CLAUDE.md to AGENTS.md (#8052)

## Summary

Pure rename of CLAUDE.md files to AGENTS.md (no content changes).

## Changes

| Old Path | New Path |
|----------|----------|
| `.github/CLAUDE.md` | `.github/AGENTS.md` |
| `.storybook/CLAUDE.md` | `.storybook/AGENTS.md` |
| `browser_tests/CLAUDE.md` | `browser_tests/AGENTS.md` |
| `src/CLAUDE.md` | `src/AGENTS.md` |
| `src/components/CLAUDE.md` | `src/components/AGENTS.md` |
| `src/lib/litegraph/CLAUDE.md` | `src/lib/litegraph/AGENTS.md` |

Root `CLAUDE.md` deleted (content will be merged into `AGENTS.md` in
follow-up PR).

## Follow-up

A second PR will add glob-based guidance files and consolidate
redundancies.

---------

Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: Christian Byrne <cbyrne@comfy.org>

AGENTS.md

@@ -1,5 +1,7 @@
 # Repository Guidelines
 
+See @docs/guidance/*.md for file-type-specific conventions (auto-loaded by glob).
+
 ## Project Structure & Module Organization
 
 - Source: `src/`
@@ -46,6 +48,21 @@ The project uses **Nx** for build orchestration and task management
 - `pnpm lint` / `pnpm lint:fix`: Lint (ESLint)
 - `pnpm format` / `pnpm format:check`: Prettier
 - `pnpm typecheck`: Vue TSC type checking
+- `pnpm storybook`: Start Storybook development server
+
+## Development Workflow
+
+1. Make code changes
+2. Run relevant tests
+3. Run `pnpm typecheck`, `pnpm lint`, `pnpm format`
+4. Check if README updates are needed
+5. Suggest docs.comfy.org updates for user-facing changes
+
+## Git Conventions
+
+- Use `prefix:` format: `feat:`, `fix:`, `test:`
+- Add "Fixes #n" to PR descriptions
+- Never mention Claude/AI in commits
 
 ## Coding Style & Naming Conventions