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/init.md

@@ -397,50 +397,3 @@ If not in git repo and empty directory:
 2. Create minimal project.json
 3. Suggest: "Add code files and run /workflow:init --regenerate"
 ```
-
-## Integration with Existing Commands
-
-### /workflow:session:start
-Modified to check and call init:
-```javascript
-// In start.md Step 0
-if (!FileExists('.workflow/project.json')) {
-  console.log("Project not initialized. Running /workflow:init...");
-  SlashCommand({command: "/workflow:init"});
-  // Wait for completion, then continue with session creation
-}
-```
-
-### /workflow:status --project
-Uses extended overview fields:
-```javascript
-console.log(`## Technology Stack`);
-console.log(`Languages: ${overview.technology_stack.languages.map(l => l.name).join(', ')}`);
-console.log(`Frameworks: ${overview.technology_stack.frameworks.join(', ')}`);
-
-console.log(`\n## Architecture`);
-console.log(`Style: ${overview.architecture.style}`);
-console.log(`Patterns: ${overview.architecture.patterns.join(', ')}`);
-
-console.log(`\n## Key Components (${overview.key_components.length})`);
-overview.key_components.forEach(c => {
-  console.log(`- ${c.name} (${c.path})`);
-  console.log(`  ${c.description}`);
-});
-```
-
-## Performance Considerations
-
-**Execution Time**:
-- cli-explore-agent Deep Scan: 2-5 minutes
-- Total initialization: 2-6 minutes (one-time cost)
-
-**Optimization**:
-- Skip regeneration if project.json exists
-- Cache analysis results in _metadata
-- Parallel execution: project discovery + agent analysis
-
-## Related Commands
-- `/workflow:session:start` - Calls init if needed
-- `/workflow:status --project` - Views project overview
-- `/workflow:init --regenerate` - Updates project analysis