fix(#230): Correct documentation errors from code review

- Fix CRITICAL: Correct 5 environment variable names to match actual config
  (VALKEY_HOST not ORCHESTRATOR_VALKEY_HOST, CLAUDE_API_KEY not ORCHESTRATOR_CLAUDE_API_KEY, etc.)
- Fix CRITICAL: Correct quality gate profiles table to match actual gate-config service
  (minimal = tests only, not typecheck+lint; add agent type defaults)
- Fix IMPORTANT: Add missing gateProfile optional field to spawn request docs

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

apps/orchestrator/README.md

@@ -58,6 +58,7 @@ Monitored via `apps/web/` (Agent Dashboard).
 {
   "taskId": "string (required)",
   "agentType": "worker | reviewer | tester",
+  "gateProfile": "strict | standard | minimal | custom (optional)",
   "context": {
     "repository": "https://git.example.com/repo.git",
     "branch": "main",
@@ -134,11 +135,11 @@ orchestrator:events           → Pub/sub channel for lifecycle events
 
 ## Quality Gate Profiles
 
-| Profile  | Pre-commit             | Post-commit                                   |
-| -------- | ---------------------- | --------------------------------------------- |
-| strict   | typecheck, lint, tests | coverage (85%), build, integration, AI review |
-| standard | typecheck, lint, tests | coverage (85%), build                         |
-| minimal  | typecheck, lint        | build                                         |
+| Profile  | Default For | Gates                                                                 |
+| -------- | ----------- | --------------------------------------------------------------------- |
+| strict   | reviewer    | typecheck, lint, tests, coverage (85%), build, integration, AI review |
+| standard | worker      | typecheck, lint, tests, coverage (85%)                                |
+| minimal  | tester      | tests only                                                            |
 
 ## Development
 
@@ -175,14 +176,14 @@ pnpm --filter @mosaic/orchestrator lint
 
 Environment variables loaded via `@nestjs/config`. Key variables:
 
-| Variable                       | Description                  |
-| ------------------------------ | ---------------------------- |
-| `ORCHESTRATOR_PORT`            | HTTP port (default: 3001)    |
-| `ORCHESTRATOR_CLAUDE_API_KEY`  | Claude API key for agents    |
-| `ORCHESTRATOR_VALKEY_HOST`     | Valkey/Redis host            |
-| `ORCHESTRATOR_VALKEY_PORT`     | Valkey/Redis port            |
-| `ORCHESTRATOR_COORDINATOR_URL` | Quality Coordinator base URL |
-| `ORCHESTRATOR_DOCKER_ENABLED`  | Enable Docker sandbox        |
+| Variable            | Description                            |
+| ------------------- | -------------------------------------- |
+| `ORCHESTRATOR_PORT` | HTTP port (default: 3001)              |
+| `CLAUDE_API_KEY`    | Claude API key for agents              |
+| `VALKEY_HOST`       | Valkey/Redis host (default: localhost) |
+| `VALKEY_PORT`       | Valkey/Redis port (default: 6379)      |
+| `COORDINATOR_URL`   | Quality Coordinator base URL           |
+| `SANDBOX_ENABLED`   | Enable Docker sandbox (true/false)     |
 
 ## Related Documentation