Android reproduction driver

1. From each checkout, run seed.py CHECKOUT to generate four synthetic 600x160 PNGs and two replay fixtures. It changes only replay response data, not rendering code.
2. Install dependencies with vp i. Start a fresh server with T3CODE_DEV_SEED=0 and T3CODE_AUTO_BOOTSTRAP_PROJECT_FROM_CWD=0.
3. Add .t3/workspaces/Image-proof through `node apps/server/src/bin.ts project add ... --title 'Image rendering' --base-dir .t3`.
4. Start a thread through `node apps/server/src/bin.ts thread start PROJECT 'Show four images, one per line.' --title 'Image lines proof' --provider devReplay --model showcase --wait --json --base-dir .t3`.
5. Start the blank-line control using the same command with title 'Blank lines proof' and model todo-list.
6. Prepare and install the native Android development client with vp run mobile:install android. Serve each checkout through its own Metro process on all interfaces.
7. Pair the same Pixel 9 Android API 36 device with the isolated server using the repository pairing helper. Open 'Image lines proof', wait for loading, and capture the static rendering. Tap an image, inspect the gallery, then return.
8. Open 'Blank lines proof' and capture the control. Repeat with the other checkout, keeping the same device, theme, and viewport.

The replay fixture emits exactly four Markdown images separated by single newlines; the control uses two newlines. PNGs have numbered labels and white borders so clipping is visible.