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/session/start.md

@@ -202,41 +202,6 @@ SlashCommand(command="/workflow:session:start")
 SlashCommand(command="/workflow:session:start --new \"experimental feature\"")
 ```
 
-## Simple Bash Commands
-
-### Basic Operations
-```bash
-# Check active sessions
-bash(ls .workflow/.active-*)
-
-# List all sessions
-bash(ls .workflow/WFS-*)
-
-# Read session metadata
-bash(cat .workflow/WFS-[session-id]/workflow-session.json)
-
-# Create session directories
-bash(mkdir -p .workflow/WFS-[session-id]/.process)
-bash(mkdir -p .workflow/WFS-[session-id]/.task)
-bash(mkdir -p .workflow/WFS-[session-id]/.summaries)
-
-# Mark session as active
-bash(touch .workflow/.active-WFS-[session-id])
-
-# Clean active markers
-bash(rm .workflow/.active-*)
-```
-
-### Generate Session Slug
-```bash
-bash(echo "Task Description" | sed 's/[^a-zA-Z0-9]/-/g' | tr '[:upper:]' '[:lower:]' | cut -c1-50)
-```
-
-### Create Metadata JSON
-```bash
-bash(echo '{"session_id":"WFS-test","project":"test project","status":"planning"}' > .workflow/WFS-test/workflow-session.json)
-```
-
 ## Session ID Format
 - Pattern: `WFS-[lowercase-slug]`
 - Characters: `a-z`, `0-9`, `-` only