chore(env): add Cloud Agent environment config

.cursor/environment.json

@@ -0,0 +1,12 @@
+{
+  "name": "BandScope",
+  "install": "curl --proto '=https' --tlsv1.2 -LsSf https://astral.sh/uv/0.8.6/install.sh | env UV_UNMANAGED_INSTALL=\"$HOME/.local/bin\" sh && export PATH=\"$HOME/.local/bin:$PATH\" && npm ci && uv sync --project services/analysis-engine --group dev --frozen",
+  "ports": [{ "name": "desktop-dev", "port": 5173 }],
+  "terminals": [
+    {
+      "name": "desktop-dev",
+      "command": "npm run dev --workspace @bandscope/desktop",
+      "description": "Vite dev server for the BandScope desktop app (browser fallback mode) at http://localhost:5173/"
+    }
+  ]
+}

services/analysis-engine/tests/test_cloud_agent_environment.py

@@ -0,0 +1,23 @@
+"""Regression tests for the reproducible Cursor Cloud Agent bootstrap."""
+
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+
+def test_cloud_agent_install_uses_pinned_locked_dependency_bootstrap() -> None:
+    """Keep Cloud Agent dependency setup aligned with BandScope's locked CI path."""
+    repo_root = Path(__file__).resolve().parents[3]
+    environment = json.loads(
+        (repo_root / ".cursor" / "environment.json").read_text(encoding="utf-8")
+    )
+    install = environment["install"]
+
+    assert "https://astral.sh/uv/0.8.6/install.sh" in install
+    assert "--proto '=https'" in install
+    assert "--tlsv1.2" in install
+    assert 'UV_UNMANAGED_INSTALL="$HOME/.local/bin"' in install
+    assert "npm ci" in install
+    assert "npm install" not in install
+    assert "uv sync --project services/analysis-engine --group dev --frozen" in install