Add DocGen tool with comprehensive documentation generation capabilities (#109)

* WIP: new workflow architecture

* WIP: further improvements and cleanup

* WIP: cleanup and docks, replace old tool with new

* WIP: cleanup and docks, replace old tool with new

* WIP: new planner implementation using workflow

* WIP: precommit tool working as a workflow instead of a basic tool
Support for passing False to use_assistant_model to skip external models completely and use Claude only

* WIP: precommit workflow version swapped with old

* WIP: codereview

* WIP: replaced codereview

* WIP: replaced codereview

* WIP: replaced refactor

* WIP: workflow for thinkdeep

* WIP: ensure files get embedded correctly

* WIP: thinkdeep replaced with workflow version

* WIP: improved messaging when an external model's response is received

* WIP: analyze tool swapped

* WIP: updated tests
* Extract only the content when building history
* Use "relevant_files" for workflow tools only

* WIP: updated tests
* Extract only the content when building history
* Use "relevant_files" for workflow tools only

* WIP: fixed get_completion_next_steps_message missing param

* Fixed tests
Request for files consistently

* Fixed tests
Request for files consistently

* Fixed tests

* New testgen workflow tool
Updated docs

* Swap testgen workflow

* Fix CI test failures by excluding API-dependent tests

- Update GitHub Actions workflow to exclude simulation tests that require API keys
- Fix collaboration tests to properly mock workflow tool expert analysis calls
- Update test assertions to handle new workflow tool response format
- Ensure unit tests run without external API dependencies in CI

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* WIP - Update tests to match new tools

* WIP - Update tests to match new tools

* WIP - Update tests to match new tools

* Should help with https://github.com/BeehiveInnovations/zen-mcp-server/issues/97
Clear python cache when running script: https://github.com/BeehiveInnovations/zen-mcp-server/issues/96
Improved retry error logging
Cleanup

* WIP - chat tool using new architecture and improved code sharing

* Removed todo

* Removed todo

* Cleanup old name

* Tweak wordings

* Tweak wordings
Migrate old tests

* Support for Flash 2.0 and Flash Lite 2.0

* Support for Flash 2.0 and Flash Lite 2.0

* Support for Flash 2.0 and Flash Lite 2.0
Fixed test

* Improved consensus to use the workflow base class

* Improved consensus to use the workflow base class

* Allow images

* Allow images

* Replaced old consensus tool

* Cleanup tests

* Tests for prompt size

* New tool: docgen
Tests for prompt size
Fixes: https://github.com/BeehiveInnovations/zen-mcp-server/issues/107
Use available token size limits: https://github.com/BeehiveInnovations/zen-mcp-server/issues/105

* Improved docgen prompt
Exclude TestGen from pytest inclusion

* Updated errors

* Lint

* DocGen instructed not to fix bugs, surface them and stick to d

* WIP

* Stop claude from being lazy and only documenting a small handful

* More style rules

---------

Co-authored-by: Claude <noreply@anthropic.com>

tests/test_auto_mode_comprehensive.py

@@ -316,7 +316,10 @@ class TestAutoModeComprehensive:
             if provider_count == 1 and os.getenv("GEMINI_API_KEY"):
                 # Only Gemini configured - should only show Gemini models
                 non_gemini_models = [
-                    m for m in available_models if not m.startswith("gemini") and m not in ["flash", "pro"]
+                    m
+                    for m in available_models
+                    if not m.startswith("gemini")
+                    and m not in ["flash", "pro", "flash-2.0", "flash2", "flashlite", "flash-lite"]
                 ]
                 assert (
                     len(non_gemini_models) == 0
@@ -430,9 +433,12 @@ class TestAutoModeComprehensive:
             response_data = json.loads(response_text)
 
             assert response_data["status"] == "error"
-            assert "Model parameter is required" in response_data["content"]
-            assert "flash" in response_data["content"]  # Should suggest flash for FAST_RESPONSE
-            assert "category: fast_response" in response_data["content"]
+            assert (
+                "Model parameter is required" in response_data["content"]
+                or "Model 'auto' is not available" in response_data["content"]
+            )
+            # Note: With the new SimpleTool-based Chat tool, the error format is simpler
+            # and doesn't include category-specific suggestions like the original tool did
 
     def test_model_availability_with_restrictions(self):
         """Test that auto mode respects model restrictions when selecting fallback models."""