feat(commands): make dispatch files active command handlers

All 25 dispatch files now have name: in frontmatter with Workflow
section that displays sub-commands and prompts for selection.
Bare /noun invocation is now useful instead of a dead end.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/projman/commands/sprint.md

@@ -1,18 +1,27 @@
 ---
-description: Sprint lifecycle management
+name: sprint
+description: Sprint lifecycle management — type /sprint <action> for commands
 ---
 
 # /sprint
 
 Sprint lifecycle management for projman.
 
-## Sub-commands
+When invoked without a sub-command, display available actions and ask which to run.
 
-| Sub-command | Description |
-|-------------|-------------|
+## Available Commands
+
+| Command | Description |
+|---------|-------------|
 | `/sprint plan` | Analyze requirements, create issues, request approval |
 | `/sprint start` | Begin execution, load context, dispatch tasks |
 | `/sprint status` | Check progress, blockers, completion percentage |
 | `/sprint close` | Capture lessons learned, close milestone |
 | `/sprint review` | Pre-close code quality review |
 | `/sprint test` | Run/generate tests for sprint scope |
+
+## Workflow
+
+1. Display the table above
+2. Ask: "Which command would you like to run?"
+3. Route to the selected sub-command