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/design-review.md

@@ -61,8 +61,8 @@ Each finding includes:
 ## Related Commands
 
 - `/design-gate` - Binary pass/fail for sprint execution (no detailed report)
-- `/component` - Inspect individual DMC component props
-- `/theme` - Check active theme configuration
+- `/viz-component` - Inspect individual DMC component props
+- `/viz-theme` - Check active theme configuration
 
 ## Requirements