* chore: just a plan update
* Add LM Studio as local AI provider (OpenAI-compatible, like Ollama)
* Convert WebP thumbnails to JPEG before image analysis for LM Studio compatibility
* Strengthen language enforcement in image analysis prompt for local models
* Use i18n localized prompts for image analysis instead of English instructions
* Add airplane mode (Flugmodus) with status bar toggle and offline model preferences
* Fix flightmode: persist model IDs, skip network when offline, airplane icon
* Auto-fallback to offline models in airplane mode for chat, title, and image analysis
* Auto-select first local model as offline fallback when no explicit offline model configured
* Block git fetch/pull/push and site upload in airplane mode
* fix: thumbnails optimized for AI
* fix: error handling in airplane mode
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Co-authored-by: hugo <hugoms@me.com>
