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/saas-api-platform/commands/api-setup.md

@@ -0,0 +1,99 @@
+---
+name: api setup
+description: Setup wizard for saas-api-platform
+agent: api-architect
+---
+
+# /api setup - API Platform Setup Wizard
+
+## Skills to Load
+
+- skills/framework-detection.md
+- skills/visual-header.md
+
+## Visual Output
+
+Display header: `API-PLATFORM - Setup Wizard`
+
+## Usage
+
+```
+/api setup
+```
+
+## Workflow
+
+### Phase 1: Framework Detection
+
+Scan the project root for framework indicators:
+
+| File / Pattern | Framework | Confidence |
+|----------------|-----------|------------|
+| `main.py` with `from fastapi` | FastAPI | High |
+| `app.py` with `from fastapi` | FastAPI | High |
+| `requirements.txt` containing `fastapi` | FastAPI | Medium |
+| `pyproject.toml` with `fastapi` dependency | FastAPI | Medium |
+| `package.json` with `express` dependency | Express | High |
+| `app.js` or `app.ts` with `require('express')` | Express | High |
+| `tsconfig.json` + express in deps | Express (TypeScript) | High |
+
+If no framework detected, ask user to select one.
+
+### Phase 2: Project Structure Mapping
+
+Identify existing project layout:
+
+- **Route files**: Locate route/controller directories
+- **Models**: Locate model/schema definition files
+- **Middleware**: Locate existing middleware
+- **Tests**: Locate test directories and test runner config
+- **OpenAPI spec**: Check for existing `openapi.yaml`, `openapi.json`, or `swagger.json`
+
+Report findings to user with directory tree.
+
+### Phase 3: Convention Configuration
+
+Ask user about project conventions:
+
+- **Route style**: RESTful nested (`/users/{id}/posts`) vs flat (`/user-posts`)
+- **Versioning**: URL prefix (`/v1/`) vs header-based vs none
+- **Auth pattern**: JWT, OAuth2, API key, or none
+- **Response format**: JSON:API, HAL, plain JSON
+
+Store decisions in `.api-platform.json` in project root for future commands.
+
+### Phase 4: Validation
+
+Verify detected configuration:
+
+- Confirm framework version
+- Confirm route directory location
+- Confirm model directory location
+- Display summary with all detected settings
+
+## Output Format
+
+```
++----------------------------------------------------------------------+
+|  API-PLATFORM - Setup Wizard                                         |
++----------------------------------------------------------------------+
+
+Framework:     FastAPI 0.104.1
+Route Dir:     ./app/routes/
+Models Dir:    ./app/models/
+Tests Dir:     ./tests/
+OpenAPI Spec:  ./openapi.yaml (existing)
+
+Conventions:
+  Versioning:  /v1/ URL prefix
+  Auth:        JWT Bearer
+  Response:    Plain JSON
+
+Configuration saved to .api-platform.json
+```
+
+## Important Notes
+
+- This command does NOT create project files; it only detects and configures
+- If `.api-platform.json` already exists, offer to update or keep existing
+- All subsequent commands rely on setup configuration