feat(tools): add TinyFish cloud browser provider

Adds TinyFish (tinyfish.ai) as a cloud browser provider alongside
Browserbase, Browser Use, and Firecrawl. Sessions are created via a
simple POST that returns a CDP websocket URL.

- tools/browser_providers/tinyfish.py — TinyFishBrowserProvider
- tools/browser_tool.py — register in _PROVIDER_REGISTRY
- hermes_cli/tools_config.py — add to onboarding provider picker
- hermes_cli/config.py — TINYFISH_API_KEY env var entries
- hermes_cli/nous_subscription.py — browser label + feature state
- website/docs — document env vars and setup

Based on PR #6329 by @simantak-dabhade.

website/docs/user-guide/features/browser.md

@@ -12,6 +12,7 @@ Hermes Agent includes a full browser automation toolset with multiple backend op
 - **Browserbase cloud mode** via [Browserbase](https://browserbase.com) for managed cloud browsers and anti-bot tooling
 - **Browser Use cloud mode** via [Browser Use](https://browser-use.com) as an alternative cloud browser provider
 - **Firecrawl cloud mode** via [Firecrawl](https://firecrawl.dev) for cloud browsers with built-in scraping
+- **TinyFish cloud mode** via [TinyFish](https://tinyfish.ai) for fast cloud CDP browsers
 - **Camofox local mode** via [Camofox](https://github.com/jo-inc/camofox-browser) for local anti-detection browsing (Firefox-based fingerprint spoofing)
 - **Local Chrome via CDP** — connect browser tools to your own Chrome instance using `/browser connect`
 - **Local browser mode** via the `agent-browser` CLI and a local Chromium installation
@@ -86,6 +87,29 @@ FIRECRAWL_API_URL=http://localhost:3002
 FIRECRAWL_BROWSER_TTL=600
 ```
 
+### TinyFish cloud mode
+
+To use TinyFish as your cloud browser provider, add:
+
+```bash
+# Add to ~/.hermes/.env
+TINYFISH_API_KEY=your_key_here
+```
+
+Get your API key at [agent.tinyfish.ai/api-keys](https://agent.tinyfish.ai/api-keys). Then select TinyFish as your browser provider:
+
+```bash
+hermes setup tools
+# → Browser Automation → TinyFish
+```
+
+Optional settings:
+
+```bash
+# Session inactivity timeout in seconds (default: 300, capped to your plan maximum)
+TINYFISH_BROWSER_TIMEOUT=600
+```
+
 ### Hybrid routing: cloud for public URLs, local for LAN/localhost
 
 When a cloud provider is configured, Hermes auto-spawns a **local Chromium sidecar**