Add GitHub Actions CI/CD pipeline and test framework

- Add .github/workflows/build-test.yml for automated testing
- Add tests/ directory with TypeScript test runner
- Add docs/CICD.md documentation
- Remove .gitlab-ci.yml (migrated to GitHub Actions)
- Update .gitignore for test artifacts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tests/testcases/build/TC-BUILD-001.yml

@@ -0,0 +1,31 @@
+id: TC-BUILD-001
+name: Builder Image Verification
+suite: build
+priority: 1
+timeout: 120000
+
+dependencies: []
+
+steps:
+  - name: Check image exists
+    command: docker images ollama37-builder:latest --format '{{.Repository}}:{{.Tag}}'
+
+  - name: Verify CUDA toolkit
+    command: docker run --rm ollama37-builder:latest nvcc --version
+
+  - name: Verify GCC version
+    command: docker run --rm ollama37-builder:latest gcc --version | head -1
+
+  - name: Verify Go version
+    command: docker run --rm ollama37-builder:latest go version
+
+criteria: |
+  All commands should succeed (exit code 0).
+
+  Expected outputs:
+  - Image exists: should show "ollama37-builder:latest"
+  - CUDA: should show version 11.4 (accept 11.4.x)
+  - GCC: should show version 10 (accept GCC 10.x)
+  - Go: should show version 1.25 or higher
+
+  Accept minor version variations. Focus on major versions being correct.

tests/testcases/build/TC-BUILD-002.yml

@@ -0,0 +1,27 @@
+id: TC-BUILD-002
+name: Runtime Image Build
+suite: build
+priority: 2
+timeout: 900000
+
+dependencies:
+  - TC-BUILD-001
+
+steps:
+  - name: Build runtime image
+    command: cd docker && make build-runtime-no-cache 2>&1 | tail -50
+    timeout: 900000
+
+  - name: Verify runtime image exists
+    command: docker images ollama37:latest --format '{{.Repository}}:{{.Tag}} {{.Size}}'
+
+criteria: |
+  The runtime Docker image should build successfully from GitHub source.
+
+  Expected:
+  - Build completes without fatal errors
+  - Final output should mention "successfully" or similar completion message
+  - Runtime image "ollama37:latest" should exist after build
+  - Image size should be substantial (>10GB is expected due to CUDA)
+
+  Accept build warnings. Only fail on actual build errors.

tests/testcases/build/TC-BUILD-003.yml

@@ -0,0 +1,25 @@
+id: TC-BUILD-003
+name: Image Size Validation
+suite: build
+priority: 3
+timeout: 30000
+
+dependencies:
+  - TC-BUILD-002
+
+steps:
+  - name: Check builder image size
+    command: docker images ollama37-builder:latest --format '{{.Size}}'
+
+  - name: Check runtime image size
+    command: docker images ollama37:latest --format '{{.Size}}'
+
+criteria: |
+  Docker images should be within expected size ranges.
+
+  Expected:
+  - Builder image: 10GB to 20GB (contains CUDA, GCC, CMake, Go)
+  - Runtime image: 15GB to 25GB (contains builder + compiled ollama)
+
+  These are large images due to CUDA toolkit and build tools.
+  Accept sizes within reasonable range of expectations.