CI/CD Optimization: Guard Rails, Pre-commit Checks, and Test Fixes (#90)

* CI/CD Optimization: Guard Rails, Black Linting, and Pre-commit Hooks

- Fixed all test collection errors (Selenium imports, fixture paths, syntax)
- Implemented pre-commit hooks with Black formatting and isort
- Created comprehensive Makefile with test targets (unit, integration, functional, e2e)
- Added pytest.ini with marker definitions for test categorization
- Established guard rails to prevent future collection errors
- Wrapped optional dependencies (Selenium, MoviePy) in try-except blocks
- Added conftest_markers for automatic test categorization

This ensures a smooth development stream with:
- Fast feedback loops (pre-commit checks before push)
- Consistent code formatting (Black)
- Reliable CI/CD (no collection errors, proper test isolation)
- Clear test organization (unit, integration, functional, E2E)

* Fix CI/CD test failures:
- Export templates from dashboard.app
- Fix model name assertion in test_agent.py
- Fix platform-agnostic path resolution in test_path_resolution.py
- Skip Docker tests in test_docker_deployment.py if docker not available
- Fix test_model_fallback_chain logic in test_ollama_integration.py

* Add preventative pre-commit checks and Docker test skipif decorators:
- Create pre_commit_checks.py script for common CI failures
- Add skipif decorators to Docker tests
- Improve test robustness for CI environments

.pre-commit-config.yaml

@@ -0,0 +1,71 @@
+# Pre-commit hooks for local development
+# Install: pip install pre-commit
+# Setup: pre-commit install
+# Run manually: pre-commit run --all-files
+
+repos:
+  # Code formatting
+  - repo: https://github.com/psf/black
+    rev: 23.12.1
+    hooks:
+      - id: black
+        language_version: python3.11
+        args: [--line-length=100]
+
+  # Import sorting
+  - repo: https://github.com/PyCQA/isort
+    rev: 5.13.2
+    hooks:
+      - id: isort
+        args: [--profile=black, --line-length=100]
+
+  # Type checking (optional - can be slow)
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.7.1
+    hooks:
+      - id: mypy
+        additional_dependencies: [types-all]
+        args: [--ignore-missing-imports, --no-error-summary]
+        exclude: ^tests/
+        stages: [manual]
+
+  # YAML validation
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: check-yaml
+      - id: check-json
+      - id: check-toml
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-merge-conflict
+      - id: debug-statements
+      - id: mixed-line-ending
+
+  # Security checks (optional)
+  - repo: https://github.com/PyCQA/bandit
+    rev: 1.7.5
+    hooks:
+      - id: bandit
+        args: [-ll, --skip, B101,B601]
+        exclude: ^tests/
+        stages: [manual]
+
+  # Fast unit tests only (not E2E, not slow tests)
+  - repo: local
+    hooks:
+      - id: pytest-unit
+        name: pytest-unit
+        entry: pytest
+        language: system
+        types: [python]
+        stages: [commit]
+        pass_filenames: false
+        always_run: true
+        args:
+          - tests
+          - -m
+          - "unit"
+          - --tb=short
+          - -q
+        verbose: true