docs: fix documentation drift — adapters, plugins, tech stack

- Fix gemini adapter name: `gemini-local` → `gemini_local` (matches registry.ts)
- Move .doc-review-cursor to .gitignore (tooling state, not source)

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

.doc-review-cursor

@@ -1 +0,0 @@
-16ab8c8

.gitignore

@@ -38,6 +38,9 @@ tmp/
 .claude/settings.local.json
 .paperclip-local/
 
+# Doc maintenance cursor
+.doc-review-cursor
+
 # Playwright
 tests/e2e/test-results/
 tests/e2e/playwright-report/

doc/SPEC.md

@@ -193,7 +193,7 @@ Agent configuration includes an **adapter** that defines how Paperclip invokes t
 | `process`            | Execute a child process | `python run_agent.py --agent-id {id}`         |
 | `http`               | Send an HTTP request    | `POST https://openclaw.example.com/hook/{id}` |
 | `openclaw_gateway`   | OpenClaw gateway API    | Managed OpenClaw agent via gateway             |
-| `gemini-local`       | Gemini CLI process      | Local Gemini CLI with sandbox and approval     |
+| `gemini_local`       | Gemini CLI process      | Local Gemini CLI with sandbox and approval     |
 | `hermes_local`       | Hermes agent process    | Local Hermes agent                             |
 
 The `process` and `http` adapters ship as defaults. Additional adapters have been added for specific agent runtimes (see list above), and new adapter types can be registered via the plugin system (see Plugin / Extension Architecture).