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The embedded WASM now requires SIMD128: Chrome 91+, Firefox 89+, or Safari 16.4+. Custom WASM hosts must provide env.now_ms() as a monotonic clock in milliseconds.

Applications using the Restty JavaScript loader need no configuration changes. Older browser engines without SIMD128 must be updated.
Direct WASM hosts: { env: { log } } -> { env: { log, now_ms: () => performance.now() } }.
Source builds: Zig 0.15.2 -> Zig 0.16.0. Run bun run build:wasm before building the package.

Updated the Ghostty core to upstream 492300cad, with WASM parsing and memory improvements.
Added Kitty image animation playback and relative placements rooted in normal placements.

Copy text directly from the terminal buffer, preserving selected blank lines and Unicode graphemes while joining soft-wrapped lines.
Use upstream whole-terminal search across output updates, resize, and alternate-screen changes.
Decode and validate PNG images in WASM through Wuffs. Invalid PNG data is rejected before rendering.
Refresh image textures when pixel content changes at an existing memory address.

Use upstream stream handling for terminal parsing and replies while retaining Restty device identity.
Build WASM with Zig 0.16.0, ReleaseSafe, SIMD128, and a 128 KiB stack. Removed the obsolete macOS SDK workaround.
Rebuild WASM during CI and release validation and publishing.
Added repeatable browser core benchmarks and regression coverage for native copy, search updates, image animation, and relative placements. Chrome WebGL2 and WebGPU rendering checks pass; Safari UI and timing checks remain unverified because local automation was unavailable.

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