feat(pipeline): add runnable artifact pipeline increment

[Change Nature]
- This commit adds the first runnable increment of the F# artifact
  pipeline: CLI, server, frontend bundle, stage fixture, and tests.
  It is feature work, not a bug fix.

[New Capability]
- CLI `run` executes the three-step Blender fixture through the process
  bridge and writes GLBs, step logs, events, and a manifest; `verify`
  validates a manifest without Blender.
- Server exposes run start, run-scoped SSE, artifact manifest/file
  routes, and serves the Fable frontend from its build output.
- Frontend starts runs, follows run-scoped SSE progress, and links the
  artifact manifest on completion.

[Implementation]
- Shared layer holds domain, run state, replay, and artifact contracts;
  Modeling holds the pipeline, 120s bridge timeout, and result-file
  protocol; stage/blender/fixture.py owns geometry in Python (bpy owns
  geometry, F# owns orchestration).
- Fable bundle is regenerated into public/ and copied by the server
  project; solution includes all projects with warnings-as-errors.
- README documents build, Fable, server, interpreter/env, fixture
  limitations, and current verification status.

[Impact]
- Verified: 40/40 solution tests pass; Release build 0 warnings/errors;
  real CLI run with bpy 5.0.1 produced 3 GLBs, 3 logs, and a
  verify-clean manifest; isolated-port server smoke flow succeeded.
- Not yet verified: browser end-to-end behavior and production
  fidelity. Artifacts and caches are gitignored.

1 files changed, 29 insertions, 0 deletions

diff --git a/public/SomhairlesDream.Shared/Replay.js b/public/SomhairlesDream.Shared/Replay.js
new file mode 100644
index 0000000..9ad2fa2
--- /dev/null
+++ b/public/SomhairlesDream.Shared/Replay.js
@@ -0,0 +1,29 @@
+import { Record } from "../fable_modules/fable-library-js.4.24.0/Types.js";
+import { record_type, string_type, int32_type } from "../fable_modules/fable-library-js.4.24.0/Reflection.js";
+import { MeshSnapshot, Vector3, MeshSnapshot_$reflection } from "./Domain.js";
+
+export class ReplayFrame extends Record {
+    constructor(Version, Label, Mesh) {
+        super();
+        this.Version = (Version | 0);
+        this.Label = Label;
+        this.Mesh = Mesh;
+    }
+}
+
+export function ReplayFrame_$reflection() {
+    return record_type("SomhairlesDream.Shared.ReplayFrame", [], ReplayFrame, () => [["Version", int32_type], ["Label", string_type], ["Mesh", MeshSnapshot_$reflection()]]);
+}
+
+function Replay_vertex(x, y, z) {
+    return new Vector3(x, y, z);
+}
+
+function Replay_frame(version, label, vertices, faces) {
+    return new ReplayFrame(version, label, new MeshSnapshot(version, label, vertices, faces));
+}
+
+export function Replay_frames() {
+    return [Replay_frame(1, "重建起点", [Replay_vertex(-2, 0, -1), Replay_vertex(2, 0, -1), Replay_vertex(2, 0, 1), Replay_vertex(-2, 0, 1), Replay_vertex(-1, 2, -0.5), Replay_vertex(1, 2, -0.5), Replay_vertex(1, 2, 0.5), Replay_vertex(-1, 2, 0.5)], [new Int32Array([0, 1, 2]), new Int32Array([0, 2, 3]), new Int32Array([4, 6, 5]), new Int32Array([4, 7, 6]), new Int32Array([0, 4, 5]), new Int32Array([0, 5, 1]), new Int32Array([1, 5, 6]), new Int32Array([1, 6, 2]), new Int32Array([2, 6, 7]), new Int32Array([2, 7, 3]), new Int32Array([3, 7, 4]), new Int32Array([3, 4, 0])]), Replay_frame(2, "主承力骨架", [Replay_vertex(-2.5, 0, -1), Replay_vertex(2.5, 0, -1), Replay_vertex(2.5, 0, 1), Replay_vertex(-2.5, 0, 1), Replay_vertex(-1.5, 2.2, -0.7), Replay_vertex(1.5, 2.2, -0.7), Replay_vertex(1.5, 2.2, 0.7), Replay_vertex(-1.5, 2.2, 0.7), Replay_vertex(-0.45, 0, -0.45), Replay_vertex(0.45, 0, -0.45), Replay_vertex(0.45, 3, 0.45), Replay_vertex(-0.45, 3, 0.45)], [new Int32Array([0, 1, 2]), new Int32Array([0, 2, 3]), new Int32Array([4, 6, 5]), new Int32Array([4, 7, 6]), new Int32Array([8, 9, 10]), new Int32Array([8, 10, 11]), new Int32Array([0, 4, 8]), new Int32Array([4, 11, 8]), new Int32Array([1, 9, 5]), new Int32Array([1, 5, 2]), new Int32Array([2, 5, 10]), new Int32Array([2, 10, 3]), new Int32Array([3, 10, 7]), new Int32Array([3, 7, 0])]), Replay_frame(3, "舱段重构", [Replay_vertex(-3, 0, -1.3), Replay_vertex(3, 0, -1.3), Replay_vertex(3, 0, 1.3), Replay_vertex(-3, 0, 1.3), Replay_vertex(-2, 2, -1), Replay_vertex(2, 2, -1), Replay_vertex(2, 2, 1), Replay_vertex(-2, 2, 1), Replay_vertex(-1, 3.4, -0.65), Replay_vertex(1, 3.4, -0.65), Replay_vertex(1, 3.4, 0.65), Replay_vertex(-1, 3.4, 0.65), Replay_vertex(-3.8, 0.6, 0), Replay_vertex(3.8, 0.6, 0)], [new Int32Array([0, 1, 2]), new Int32Array([0, 2, 3]), new Int32Array([4, 6, 5]), new Int32Array([4, 7, 6]), new Int32Array([8, 9, 10]), new Int32Array([8, 10, 11]), new Int32Array([0, 4, 8]), new Int32Array([0, 8, 12]), new Int32Array([1, 13, 5]), new Int32Array([1, 2, 13]), new Int32Array([2, 6, 10]), new Int32Array([2, 10, 13]), new Int32Array([3, 11, 7]), new Int32Array([3, 12, 11]), new Int32Array([3, 0, 12])])];
+}
+