feat: Add comprehensive dynamic configuration system v3.3.0

## Major Features Added

### 🎯 Dynamic Configuration System
- **Environment-aware model selection**: DEFAULT_MODEL with 'pro'/'flash' shortcuts
- **Configurable thinking modes**: DEFAULT_THINKING_MODE_THINKDEEP for extended reasoning
- **All tool schemas now dynamic**: Show actual current defaults instead of hardcoded values
- **Enhanced setup workflow**: Copy from .env.example with smart customization

### 🔧 Model & Thinking Configuration
- **Smart model resolution**: Support both shortcuts ('pro', 'flash') and full model names
- **Thinking mode optimization**: Only apply thinking budget to models that support it
- **Flash model compatibility**: Works without thinking config, still beneficial via system prompts
- **Dynamic schema descriptions**: Tool parameters show current environment values

### 🚀 Enhanced Developer Experience
- **Fail-fast Docker setup**: GEMINI_API_KEY required upfront in docker-compose
- **Comprehensive startup logging**: Shows current model and thinking mode defaults
- **Enhanced get_version tool**: Reports all dynamic configuration values
- **Better .env documentation**: Clear token consumption details and model options

### 🧪 Comprehensive Testing
- **Live model validation**: New simulator test validates Pro vs Flash thinking behavior
- **Dynamic configuration tests**: Verify environment variable overrides work correctly
- **Complete test coverage**: All 139 unit tests pass, including new model config tests

### 📋 Configuration Files Updated
- **docker-compose.yml**: Fail-fast API key validation, thinking mode support
- **setup-docker.sh**: Copy from .env.example instead of manual creation
- **.env.example**: Detailed documentation with token consumption per thinking mode
- **.gitignore**: Added test-setup/ for cleanup

### 🛠 Technical Improvements
- **Removed setup.py**: Fully Docker-based deployment (no longer needed)
- **REDIS_URL smart defaults**: Auto-configured for Docker, still configurable for dev
- **All tools updated**: Consistent dynamic model parameter descriptions
- **Enhanced error handling**: Better model resolution and validation

## Breaking Changes
- Removed setup.py (Docker-only deployment)
- Model parameter descriptions now show actual defaults (dynamic)

## Migration Guide
- Update .env files using new .env.example format
- Use 'pro'/'flash' shortcuts or full model names
- Set DEFAULT_THINKING_MODE_THINKDEEP for custom thinking depth

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

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

simulator_tests/__init__.py

@@ -11,6 +11,7 @@ from .test_content_validation import ContentValidationTest
 from .test_cross_tool_comprehensive import CrossToolComprehensiveTest
 from .test_cross_tool_continuation import CrossToolContinuationTest
 from .test_logs_validation import LogsValidationTest
+from .test_model_thinking_config import TestModelThinkingConfig
 from .test_per_tool_deduplication import PerToolDeduplicationTest
 from .test_redis_validation import RedisValidationTest
 
@@ -23,6 +24,7 @@ TEST_REGISTRY = {
     "cross_tool_comprehensive": CrossToolComprehensiveTest,
     "logs_validation": LogsValidationTest,
     "redis_validation": RedisValidationTest,
+    "model_thinking_config": TestModelThinkingConfig,
 }
 
 __all__ = [
@@ -34,5 +36,6 @@ __all__ = [
     "CrossToolComprehensiveTest",
     "LogsValidationTest",
     "RedisValidationTest",
+    "TestModelThinkingConfig",
     "TEST_REGISTRY",
 ]