Kea3D Core 0.1.96 — corresponding source

Matching Core source for the 0.1.96 internal candidate. This is a source release, not approval of app/store distribution. The attached archive preserves the reviewed 305-file snapshot. SHA256: 18fa22eee7435ada076584631fef5b20405c1e1a1e0ffa787e648e63286302ea. Includes modified CAD source, pinned rebuild instructions and collected notices. Remaining dependency review and real-device verification are not represented as complete. No private integration plans or signing keys are included.