Polish Pass

[jarena3]

Refactoring & decomposition

• LcpItemBase
• TierFormatter
• Standardize (de)serialize
• Extract print layout components

Tech debt paydown

• Clean dead code
• Resolve TODO/HACK markers
• Clean up/update dependencies
• Use TS abstracts

Performance

• IndexedDB: save object over save array #2771
• Tree shake vuetify components
• Deglobalize most CC components
• Store lookup mapping
• replace watchers (where possible)

DX

• eslint
• prettier
• precommit hooks
• ts config cleanup
• rebuild gh actions pipeline
• collect and standardize naming conventions
• bundle analysis
• deployment config
• standardize commits
• semantic versioning
• sign commits
• automate changelog generation
• rewrite contributing.md
• improve bug/feature templates

Error tracking

• error tracking service
• add sentry metrics

PWA

• improve caching strategy
• update manifest
• add PWA update prompt