fix: move success notification outside withProgress to avoid stuck spinner

fix: resolve attachment key to parent paper key before writing to Zotero

feat: configurable maxChars, default 0 (no limit)

fix: replace front-truncation with head+tail strategy

fix: save_analysis.py - inline tag extraction, remove broken import

fix: update model names to match actual Copilot families (dots not dashes)

feat: dynamic model resolution via vscode.lm, no hardcoded names

fix: update default model to claude-sonnet-4-6

fix: replace vscode FileSystemWatcher with Node.js fs.watch (recursive)

feat: VS Code extension with Copilot (Claude) + disable systemd watcher

Fix markdown code fences + chunked analysis for long papers

Fix runaway terminal spawning: initialize known items on startup

Fix auto-detection: use Zotero API instead of locked SQLite

Enforce strict tag whitelist — no new tags ever generated

Auto-popup terminal on new paper detection