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/data-platform/commands/data-gate.md

@@ -1,4 +1,5 @@
 ---
+name: data gate
 description: Data integrity compliance gate (pass/fail) for sprint execution
 gate_contract: v1
 arguments:
@@ -7,21 +8,21 @@ arguments:
     required: true
 ---
 
-# /data-gate
+# /data gate
 
 Binary pass/fail validation for data integrity compliance. Used by projman orchestrator during sprint execution to gate issue completion.
 
 ## Usage
 
 ```
-/data-gate <path>
+/data gate <path>
 ```
 
 **Examples:**
 ```
-/data-gate ./dbt/models/staging/
-/data-gate ./portfolio_app/toronto/parsers/
-/data-gate ./dbt/
+/data gate ./dbt/models/staging/
+/data gate ./portfolio_app/toronto/parsers/
+/data gate ./dbt/
 ```
 
 ## What It Does
@@ -63,7 +64,7 @@ Blocking Issues (2):
 2. portfolio_app/toronto/loaders/census.py:67 - References table 'census_raw' which does not exist
    Fix: Table was renamed to 'census_demographics' in migration 003.
 
-Run /data-review for full audit report.
+Run /data review for full audit report.
 ```
 
 ## Integration with projman
@@ -78,9 +79,9 @@ This command is automatically invoked by the projman orchestrator when:
 - PASS: Issue can be marked complete
 - FAIL: Issue stays open, blocker comment added with failure details
 
-## Differences from /data-review
+## Differences from /data review
 
-| Aspect | /data-gate | /data-review |
+| Aspect | /data gate | /data review |
 |--------|------------|--------------|
 | Output | Binary PASS/FAIL | Detailed report with all severities |
 | Severity | FAIL only | FAIL + WARN + INFO |
@@ -95,7 +96,7 @@ This command is automatically invoked by the projman orchestrator when:
 - **Quick validation**: Fast pass/fail without full report
 - **Pre-merge checks**: Verify data changes before integration
 
-For detailed findings including warnings and suggestions, use `/data-review` instead.
+For detailed findings including warnings and suggestions, use `/data review` instead.
 
 ## Requirements