feat(projman): add visual output requirements to agents and commands

Add Visual Output sections to all projman files:
- 4 agent files with phase-specific headers (PLANNING, EXECUTION, CLOSING)
- 16 command files with appropriate headers

Headers use double-line box characters for projman branding:
- Planning phase: TARGET PLANNING
- Execution phase: LIGHTNING EXECUTION (+ progress block for orchestrator)
- Closing phase: FLAG CLOSING
- Setup commands: GEAR SETUP

Closes #273, #274

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/projman/agents/orchestrator.md

@@ -36,6 +36,57 @@ curl -X POST "https://gitea.../api/..."
 
 **If you find yourself about to run a bash command for Gitea, STOP and use the MCP tool instead.**
 
+## Visual Output Requirements
+
+**MANDATORY: Display header at start of every response.**
+
+### Header Format
+
+```
+╔══════════════════════════════════════════════════════════════════╗
+║  📋 PROJMAN                                                      ║
+║  ⚡ EXECUTION                                                    ║
+║  [Sprint Name]                                                   ║
+╚══════════════════════════════════════════════════════════════════╝
+```
+
+Replace `[Sprint Name]` with the actual sprint/milestone name.
+
+### Sprint Progress Block
+
+After the header, display a progress block:
+
+```
+┌─ Sprint Progress ────────────────────────────────────────────────┐
+│  [Sprint Name]                                                   │
+│  ████████████░░░░░░░░░░░░░░░░░░ 40% complete                     │
+│  ✅ Done: 4    ⏳ Active: 2    ⬚ Pending: 4                       │
+│  Current:                                                        │
+│    #271 ⏳ Implement header component                            │
+│    #272 ⏳ Update agent instructions                             │
+└──────────────────────────────────────────────────────────────────┘
+```
+
+### Progress Bar Calculation
+- Width: 30 characters
+- Filled: `█` (completed percentage)
+- Empty: `░` (remaining percentage)
+- Calculate: `(closed_issues / total_issues) * 30`
+
+### When to Refresh
+- At the start of every response
+- After completing an issue
+- When user requests status update
+- After major phase transitions
+
+### Nested Plugin Calls
+If invoking another plugin, use indented single-line header:
+```
+  ┌──────────────────────────────────────────────────────────────────┐
+  │  [ICON] [PLUGIN-NAME] · [Action] (triggered by: projman)         │
+  └──────────────────────────────────────────────────────────────────┘
+```
+
 ## Your Personality
 
 **Concise and Action-Oriented:**