refactor(workflow): remove redundant sections, focus on core responsibilities

Streamline workflow command documentation by removing sections that don't belong to core command responsibilities.

## Changes

### init.md (-46 lines)
- Remove Integration with Existing Commands section
- Remove Performance Considerations section
- Remove Related Commands section
- Focus: Project initialization and analysis only

### session/complete.md (-30 lines)
- Remove Quick Commands reference section
- Remove Archive Query Commands section
- Focus: Session archival and feature registry updates only

### session/start.md (-34 lines)
- Remove Simple Bash Commands reference section
- Keep: Session ID Format (specification/standard)
- Focus: Session creation and discovery only

### status.md (-165 lines)
- Remove Simple Bash Commands section
- Remove Simple Output Format examples
- Remove Project Mode Quick Commands section
- Focus: Status display logic only

### context-gather.md (-29 lines)
- Remove Usage Examples section
- Remove Success Criteria section
- Remove Error Handling table
- Keep: Notes (core design principles)
- Focus: Context gathering orchestration only

## Benefits
- Reduced documentation redundancy (~304 lines removed)
- Clearer command responsibilities and boundaries
- Easier maintenance and updates
- Commands focus on their specific roles in workflow

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

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

.claude/commands/workflow/tools/context-gather.md

@@ -252,30 +252,6 @@ if (historicalConflicts.length > 0 && currentRisk === "low") {
 3. Continue to Track 2 (reference documentation)
 ```
 
-## Usage Examples
-
-### Basic Usage
-```bash
-/workflow:tools:context-gather --session WFS-auth-feature "Implement JWT authentication with refresh tokens"
-```
-## Success Criteria
-
-- ✅ Valid context-package.json generated in `.workflow/{session}/.process/`
-- ✅ Contains >80% relevant files based on task keywords
-- ✅ Execution completes within 2 minutes
-- ✅ All required schema fields present and valid
-- ✅ Conflict risk accurately assessed
-- ✅ Agent reports completion with statistics
-
-## Error Handling
-
-| Error | Cause | Resolution |
-|-------|-------|------------|
-| Package validation failed | Invalid session_id in existing package | Re-run agent to regenerate |
-| Agent execution timeout | Large codebase or slow MCP | Increase timeout, check code-index status |
-| Missing required fields | Agent incomplete execution | Check agent logs, verify schema compliance |
-| File count exceeds limit | Too many relevant files | Agent should auto-prioritize top 50 by relevance |
-
 ## Notes
 
 - **Detection-first**: Always check for existing package before invoking agent