Unnamed repository; edit this file 'description' to name the repository. http://git.somhairle.bid/somhairles-dream-fsharp.git/atom?h=main 2026-09-20T17:18:53+00:00 2026-09-20T17:18:53+00:00 Somhairle H. Marisol muqiu-han@outlook.com 2026-09-20T17:18:53+00:00 urn:sha1:0397c375acea763d3110163b045d259155ba2341 Protocol: RunSnapshot gains CompletedSteps (accumulated from checkpoint artifact paths, reset on start) so the frontend can tell when real pipeline geometry exists. New coordinator method StepArtifact plus GET /api/artifacts/steps serves steps/*.glb while a run is active (any lifecycle status), traversal-guarded and .glb-only, so stages appear without waiting for run completion. Frontend: GLTFLoader loads the latest completed step into the viewport group as soon as its checkpoint lands over SSE; replay placeholder frames render only while no step artifacts exist. ?freeze=1 query param stops rotation for deterministic screenshot verification. Three.js r160 and GLTFLoader (with BufferGeometryUtils) are vendored under public/ vendor with an import map and a window.THREE shim, replacing the CDN UMD script; the ~1.4MB vendored three.js files are third-party dependencies (MIT), not project assets. Tests: store accumulation of completed artifact paths; steps endpoint serves GLB during an active run, rejects traversal, 404s missing files. Verified: dotnet build Debug+Release clean, 42/42 tests pass, Fable compile clean, release server smoke serves index/vendor/steps endpoint.