feat: Add Asana integration for project management automation

- Implement 25 MCP tools for comprehensive Asana operations
  - Task management (create, update, search, delete, complete, comment, subtask)
  - Project management (create, update, list, get tasks)
  - Workspace & team operations (list workspaces, get users)
  - Section management for Kanban workflows
  - Tag and custom field support

- Add Personal Access Token (PAT) authentication
- Use official asana>=3.2.0 Python SDK (v5+ API)
- Include comprehensive error handling with ApiException
- Add 5 unit tests with 100% pass rate
- Provide detailed documentation and usage examples

Technical Details:
- Uses asana.ApiClient with Configuration pattern
- Implements workspace resolution by name or GID
- Handles paginated responses automatically
- Follows CredentialStoreAdapter pattern
- Matches existing tool structure (slack_tool, github_tool)

Closes #4156

tools/pyproject.toml

@@ -30,6 +30,7 @@ dependencies = [
     "playwright-stealth>=1.0.5",
     "litellm>=1.81.0",
     "resend>=2.0.0",
+    "asana>=3.2.0",
     "framework",
 ]