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Adds a root PicoRunner manifest and one canonical README launch badge so the installation review can use the existing production build and preview server. Setup installs locked npm dependencies and runs the existing build; launch binds the preview to the assigned loopback host/port with strict-port checking. The badge opens an installation review and does not assert catalog acceptance. Validation on macOS, Node 24.22.0: Clean and passed. TOML and manifest-v1 schema validation passed; the exact declared launch returned HTTP 200 for the root and built assets. The owned process was stopped and its port closed. Application source and lockfile are unchanged; only and differ. Editing state is in memory. Users must save/download their images; there is no repository-relative user-data path to preserve. This is a draft. Canonical native PicoRunner 0.3.14 UI verification is being performed separately and remains pending for this PR. The proposed production manifest has not yet been accepted by the desktop semantic parser or tested through managed updates. No catalog inclusion or full compatibility is claimed. Canonical native-route caveat from the separate PicoRunner test: upstream currently listens on all interfaces. This proposed production manifest explicitly binds its preview server to loopback, verified locally, but does not change the current canonical native route. Full native UI evidence is still pending.