Sprint 14~22 — egui 리본 UI + OcctKernel B-rep + 가로보/신축이음 + 선형 좌표 + USD 익스포트 + WASM + CI/CD + 테스트 4층

Sprint 14: egui TopBottomPanel 리본 + CollapsingHeader SidePanel (상부구조·추가부재·선형·프로젝트)
Sprint 15: IncrementalDb 전 Feature 타입 확장 (girder→7종), dirty-tracking 20 unit tests
Sprint 16: Gitea + GitHub Actions CI/CD (check/test/clippy/fmt + 멀티플랫폼 릴리스)
Sprint 17: AlignmentTransform + AlignmentScene — 선형 국소 프레임 → 세계 좌표 변환
Sprint 18: OcctKernel 교각(16각형 기둥+코핑) + 교대(흉벽+푸팅+날개벽) B-rep
Sprint 19: CrossBeamIR + ExpansionJointIR — IR/DSL/kernel/scene 전 계층, sweep_profile_flat_x
Sprint 20: 테스트 4층 — Layer1 insta 스냅샷(7종), Layer2 기하 불변량(19), Layer3 두-커널(7), Layer4 proptest(7) — 61 tests pass
Sprint 21: cimery-usd PureRustKernel 실제 기하 변환 + BridgeExporter 증분 캐시
Sprint 22: viewer wasm feature + wasm-bindgen/web-sys + GitHub Actions Cloudflare Pages 배포

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cimery/.github/workflows/ci.yml

@@ -0,0 +1,80 @@
+# cimery — GitHub Actions CI (ADR-003 A3: GitHub for Win/macOS builds)
+# Mirrors Gitea CI but adds Windows and macOS runners.
+# OcctKernel build requires Windows + VS Build Tools.
+
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_LOG: info
+
+jobs:
+  # ── Cross-platform check ───────────────────────────────────────────────────
+  check:
+    name: check (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: cargo check (PureRust)
+        run: cargo check --workspace
+
+  # ── Tests ──────────────────────────────────────────────────────────────────
+  test:
+    name: test (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    needs: check
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: cargo test (workspace, PureRust)
+        run: cargo test --workspace
+
+  # ── Windows OCCT build (optional, gate on branch) ─────────────────────────
+  test-occt-windows:
+    name: test OCCT (Windows)
+    runs-on: windows-latest
+    # Only run on main or release branches to save minutes
+    if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: Install OCCT (via vcpkg)
+        shell: pwsh
+        run: |
+          git clone https://github.com/microsoft/vcpkg C:\vcpkg --depth=1
+          C:\vcpkg\bootstrap-vcpkg.bat -disableMetrics
+          C:\vcpkg\vcpkg.exe install opencascade:x64-windows
+          echo "VCPKG_ROOT=C:\vcpkg" >> $env:GITHUB_ENV
+      - name: cargo test (OCCT)
+        shell: cmd
+        run: |
+          call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
+          cargo test -p cimery-kernel --features occt
+
+  # ── Lint ───────────────────────────────────────────────────────────────────
+  clippy:
+    name: clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo clippy --workspace -- -D warnings