Release v1.1.0

Dashboard

• Fix ReferenceError: cutoff is not defined in the hourly filter that blanked the entire dashboard (#73, thanks @thomasleveil)
• Fix hourly chart ignoring the range upper bound for week / month / prev-month ranges
• Fix 404 on dashboard URLs containing query strings (?range=...&models=...) so reloads and bookmarks work, with regression tests (#81, thanks @jakduch)
• Fix blank dashboard for users whose data only contains non-billable / unknown models, or rows with empty model names: COALESCE(NULLIF(model, ''), 'unknown') normalises empty-string models (in both SELECT and GROUP BY so mixed NULL + '' rows collapse to a single "unknown" group), and the default selection falls back to all models when no billable models exist (#109, thanks @HaydenHaines)
• Use ThreadingHTTPServer so a slow /api/data no longer blocks other dashboard requests (#79, thanks @jakduch)
• Add a Today range button (#112, thanks @Fruhji)

Scanner

• Fix incremental scan not updating first_timestamp when a newly discovered session's records arrive out of order (#111, thanks @Fruhji)

Project / docs

• Adopt AGENTS.md as the canonical agent guide (shared with Codex); CLAUDE.md is now a thin @AGENTS.md import
• Codify the rule that future PR merges must preserve original-author commits (merge --no-ff for full merges, cherry-pick for partial, Co-Authored-By trailers when applying hunks manually)
• Drop unused .claude/launch.json