[RealSid08]

Summary

• replace repeated statewide catalog parsing and scanning with lazy decoding, caching, and a spatial index
• cancel and debounce obsolete viewport work, reject stale results, preserve visible markers, and prefetch beyond the visible map bounds
• prioritize truthful live and predicted markers while clustering and de-emphasizing dense warning-only data
• launch from current location with deterministic permission, timeout, fallback, and user-gesture handling
• replace the custom duration chips with a native Liquid Glass segmented picker and full-height tap targets
• make 8h+ select an eight-hour stay directly while keeping custom arrival and duration planning behind the planner button
• substantially expand deterministic unit, integration, and UI coverage

Performance evidence

• statewide catalog decode: 23.252s before, 0.523s after
• eight real-catalog viewport queries: 0.545s before, 0.405s after
• marker rendering remains density-budgeted while queries preload half a viewport beyond each visible edge

Verification

• 123 unit and integration tests passed
• 24 XCUITests passed
• clean iOS simulator build succeeded
• light, dark, and accessibility text-size appearances inspected on iOS 26.5 simulator
• git diff --check passed

Notes

• project.yml remains the XcodeGen source of truth
• live, predicted, static, and unknown parking classifications remain distinct
• no Convex or server migration is included in this PR