SelAtRans v0.1.2

• Store LLM API keys in private local files instead of Keychain, avoiding password prompts.
• Require one-time key re-entry after upgrading; never access legacy API Keychain entries.
• Distinguish missing selection metadata from an explicitly empty selection.
• Read selected text through Accessibility ranges when direct selected text is unavailable.
• Refuse ambiguous or timed-out selection capture instead of translating stale clipboard text.
• Add explicit clipboard translation actions to the floating indicator's right-click menu.