Add Ollama provider (cloud usage tracking)

[h3x89]

Summary

Add Ollama as a new provider in CodexBar to track cloud usage limits (session + weekly) displayed at https://ollama.com/settings

Context

Ollama offers cloud subscriptions (Free, Pro /mo, Max /mo) with usage limits that are visible on the user's settings page:

• Session usage: percentage used, resets in X hours
• Weekly usage: percentage used, resets in X days
• Plan tier: Free / Pro / Max

Example from https://ollama.com/settings (Free tier):

Cloud Usage
free
Cloud models and capabilities such as web search contribute to session and weekly limits. Upgrade for higher limits.

Session usage
6.7% used
Resets in 5 hours
Weekly usage
17.3% used
Resets in 7 hours

Why this matters

• Many users (including myself) use Ollama Cloud alongside local Ollama instances
• The usage page shows the exact same data that CodexBar displays for other providers (session %, weekly %, reset times)
• This would make CodexBar a one-stop shop for monitoring all AI tool quotas

Technical considerations

1. Authentication: Users likely need to authenticate via browser cookies (similar to Cursor, Claude Web)
2. API vs scraping: There's an open Ollama issue (#12532) requesting a /api/me endpoint for usage data. Until then, the web page may need to be scraped via WKWebView or cookie-based requests
3. Alternative: If Ollama adds official API, this becomes much simpler

References

• Ollama pricing: https://ollama.com/pricing
• Related Ollama issue: Cloud usage stats. ollama/ollama#12532 (Cloud usage stats - requesting API)
• User settings page showing usage: https://ollama.com/settings

Expected behavior

• Toggle to enable Ollama in Settings → Providers
• Menu bar shows session % (top bar) + weekly % (bottom bar)
• Reset countdown timers visible in submenu
• Works with Free, Pro, and Max tiers