Imported File Q&A, Specs Cleanup, and UI Tool Updates — FriedrichAI: Offline AI Steam update #6202408

This patch improves several core FriedrichAI workflows and cleans up a few rough edges from the latest tool updates.ChangedImproved imported file handling so Friedrich answers questions from imported .txt and .md files instead of dumping the raw file back into chat.Added /proofread and /spellcheck for quick spelling and grammar cleanup.Restored and improved /specs output with clearer hardware/tier information.Updated startup guidance with practical command examples for common tools.Added backend media availability flags so the interface can tell which optional media packs are installed.Updated quick actions: broader Creator/Troubleshoot tools replace narrower Steam Post/Support buttons.Improved media button handling for optional ImageGen, VideoGen, and AudioGen packs.Fixed duplicate startup “ready” messaging.Notes Optional media tools still require their matching installed packs. If a pa...