refactor: decompose god-classes, add lint gates, restructure packages
- Decompose all 11 god-classes (>200 lines) into facade + collaborators
(command/, schematic/, config/, generator/, mode/, papi/, adaptive/,
storage/, player/, leaderboard/) — every file is now <=200 lines
- Add PMD 7 (report-only) + stricter checkstyle rules (NPath, IllegalCatch,
NestedDepth, Whitespace, MissingOverride); fix real bugs found
(printStackTrace, resource leaks in ConfigLoader/SQLStatsStorage)
- docs/ARCHITECTURE.md: target structure + 'one folder = one purpose' rule
- Pilot restructure: command/core|util/, mode/impl/solo|multi|barrier/,
hook/papi/resolver/; cross-package classes made public
- TODO.md: track warning cleanup (132-138) + restructure progress
loki5512344
81788e71ed
