feat(marketplace): command consolidation + 8 new plugins (v8.1.0 → v9.0.0) [BREAKING]

Phase 1b: Rename all ~94 commands across 12 plugins to /<noun> <action>
sub-command pattern. Git-flow consolidated from 8→5 commands (commit
variants absorbed into --push/--merge/--sync flags). Dispatch files,
name: frontmatter, and cross-reference updates for all plugins.

Phase 2: Design documents for 8 new plugins in docs/designs/.

Phase 3: Scaffold 8 new plugins — saas-api-platform, saas-db-migrate,
saas-react-platform, saas-test-pilot, data-seed, ops-release-manager,
ops-deploy-pipeline, debug-mcp. Each with plugin.json, commands, agents,
skills, README, and claude-md-integration. Marketplace grows from 12→20.

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

plugins/clarity-assist/skills/escalation-patterns.md

@@ -40,7 +40,7 @@ add the other parts. Sound good?"
 
 ## Choosing Initial Mode
 
-### Use /quick-clarify When
+### Use /clarity quick-clarify When
 
 - Request is fairly clear, just one or two ambiguities
 - User is in a hurry
@@ -48,7 +48,7 @@ add the other parts. Sound good?"
 - Simple feature additions or bug fixes
 - Confidence is high (>90%)
 
-### Use /clarify When
+### Use /clarity clarify When
 
 - Complex multi-step requests
 - Requirements with multiple possible interpretations