feat(input): add versioned real pointer frames

[7086cmd]

Summary

Reworks real mouse/trackpad input from current main so input.pointer has a framework-owned path for absolute hover, focus, press, drag, release, cancellation, and onPress.

• keeps touch hit facts in frame argument 4 and introduces one versioned, append-only frame-input payload in argument 5
• represents pointer input as ordered move/down/up/leave/cancel edges with full JS-number coordinates, preserving a down+up fast click in one tick
• records and restores the exact frame-input payload in tape v3 while scrubbing live pointer input during replay
• keeps real-pointer interaction separate from the input.cursor virtual sprite and reads the live viewport on each pointer event
• wires the same behavior through Solid, Vue Vapor, and Octane
• replaces note-widget's private svc mouse messages and synthesized CIRCLE input with pocket-mod::Guest::frame_with_input

Semantics

Primary down captures the hovered focusable. Dragging away clears active:; re-entering restores it; release fires onPress only over the captured target. Leave clears hover while retaining capture for re-entry, and cancel/blur clears capture without firing. Window drag/resize claims now publish cancellation instead of leaving a false pressed edge.

The Note app consumes pointerEvents() only for caret placement and drag selection. Chrome activation stays entirely inside the framework's focus/onPress path.

Validation

• bun run test — 12/12 stages green, including new Solid/Vue Vapor/Octane pointer parity coverage
• bun run tape:check — 180 golden frames match
• bunx tsc --noEmit
• bun tools/build.ts note-main --density=2
• cargo test -p pocket-mod -p pocket3d -p pocket-widget --lib in the repository Linux container — 32 tests pass
• cargo check -p note-widget in the repository Linux container

Refs #59. Replaces the input boundaries explored in #229.