feat: add time filter, /time command, and auto-expand retry

refactor: change AI scoring from filter to tier labels (🟢🟡🔴)

test: improve scorer and pipeline coverage (92% → 94%)

feat: add AI job scoring with Gemini before tailoring

docs: add AI job scoring to PRD and update CLAUDE.md

fix: update scraper for new Apify actor input schema

chore: change Resume Matcher default port from 8000 to 8001

docs: add architecture overview and reference links to CLAUDE.md

docs: rewrite CLAUDE.md to 61 lines (How-only rules)

Add project documentation: BRAINSTORMING, PRD, and CLAUDE

Add support for multiple daily schedule times

Update BACKLOG: P8-P11 completed (94% coverage, 157 tests)

P11: Add auto-confirm mode (AUTO_CONFIRM environment variable)

P10: Add Resume Matcher health check command

P9: Close improver.py coverage gaps (94% → 100%)