Feat/issue 30 time machine

[theshantanujoshi]

Summary

This PR implements the Cinematic Time Machine feature as requested in Issue #30. It provides an automated, paced navigation experience through 25,000 years of Star Wars history.

Key Changes

• TimeMachine Component: A new high-fidelity UI component that auto-scrubs the era from -25,025 BBY to 35 ABY.
• Lore-Aware Pacing: Implemented a Gaussian-based slowdown mechanism that decelerates the animation near major canonical events (Order 66, Battle of Yavin, etc.) to allow users to absorb the cinematic interrupts.
• HUD Overlay: Added a premium holographic ticker showing the current year, a progress bar, and the next upcoming canonical event.
• Store Integration: Added timeMachine state management to useSelection store with support for pausing and cancellation.
• UI Integration: Added a "Rocket" trigger button to the NavRail and integrated the overlay into the AppShell.
• UX Refinements: Added keyboard support (Space to pause/resume, Escape to exit) and optimized the animation loop to resolve React state update warnings and R3F hook errors.

Verification Results

• Verified auto-scrubbing duration (~120s).
• Verified cinematic interrupts fire correctly during the automated scrub.
• Verified pause/resume and exit functionality.
• Verified visual fidelity and responsiveness on mobile/desktop.

Fixes #30

[safedep]

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[adhit-r]

This currently fails local TypeScript validation.

npm run typecheck reports:

• components/cinematic/TimeMachine.tsx(37,22): Expected 1 arguments, but got 0.
• components/cinematic/TimeMachine.tsx(38,23): Expected 1 arguments, but got 0.
• components/cinematic/TimeMachine.tsx(57,7): Type 'undefined' is not assignable to type 'number'.

Please initialize the refs with an explicit nullable type/value, for example useRef<number | null>(null), and reset them to null instead of undefined. This branch also fails git diff --check on trailing whitespace.