refactor: update internal command references in all plugin files

Updated:
- projman: 4 commands + 4 skills + integration snippet
- git-flow: 4 commands + 3 skills + integration snippet
- pr-review: 1 command cross-reference
- cmdb-assistant: 1 command + 1 skill
- data-platform: 8 commands + integration snippet
- viz-platform: 11 commands + integration snippet
- contract-validator: 1 command + 1 skill + 1 agent

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

plugins/viz-platform/commands/viz-setup.md

@@ -2,7 +2,7 @@
 description: Interactive setup wizard for viz-platform plugin
 ---
 
-# Viz-Platform Setup Wizard
+# Viz Setup
 
 ## Visual Output
 
@@ -41,5 +41,5 @@ Verify MCP server loads, display summary, prompt session restart.
 
 ## Related Commands
 
-- `/component {name}` - Inspect component props
-- `/chart {type}` - Create a chart
+- `/viz-component {name}` - Inspect component props
+- `/viz-chart {type}` - Create a chart