fix: Remove large files and add .gitignore

 CLEANUP LARGE FILES:
- Removed reports/k6_seal_test/results.json (415MB)
- Removed stillme_deployment.tar.gz (127MB)
- Removed stillme_deployment.zip (566MB)
- Added comprehensive .gitignore

 RESULT: Repository ready for GitHub push!

Author: anhmtk

.gitignore

@@ -1,133 +1,56 @@
-# ─────────────────────────────────────────────────────────────
-# StillMe / AgentDev .gitignore (Python-first, CI-friendly)
-# ─────────────────────────────────────────────────────────────
+# Large files and build artifacts
+*.tar.gz
+*.zip
+reports/k6_seal_test/results.json
+stillme_deployment.*
+stillme_lightweight_deployment.*
 
-########## Python bytecode / build ##########
-__pycache__/
-*.py[cod]
-*$py.class
+# Node modules
+node_modules/
+stillme_platform/desktop/node_modules/
 
-build/
-dist/
-*.whl
-.eggs/
-*.egg-info/
-.installed.cfg
-MANIFEST
+# Python cache
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
 
-########## Virtual envs ##########
+# Virtual environments
 .venv/
 venv/
 env/
-ENV/
-env.bak/
-venv.bak/
 
-########## Test / Coverage / Bench ##########
-.pytest_cache/
-.tox/
-.nox/
-.hypothesis/
-.coverage
-.coverage.*
-coverage/
-coverage.xml
-htmlcov/
-.benchmarks/
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
 
-########## Linters / Type checkers ##########
-.ruff_cache/
-.mypy_cache/
-.pytype/
-.pyre/
+# OS files
+.DS_Store
+Thumbs.db
 
-########## Logs / Reports / Artifacts ##########
-logs/
+# Logs
 *.log
-reports/
-artifacts/
-test-results/
-playwright-report/
-playwright/.cache/
-
-########## Datasets / Models (local only) ##########
-datasets/
-data/
-*.csv
-*.tsv
-*.jsonl
-*.parquet
-models/
-*.pt
-*.bin
-*.onnx
-*.h5
-*.pkl
-*.joblib
-*.zip
-*.7z
-
-########## Security / Secrets ##########
-.env
-.env.*
-*.key
-*.pem
-*.pfx
-*.p12
-*.crt
-*.cer
-*.der
-config/local.yaml
-config/production.yaml
-config/staging.yaml
-
-########## Sandbox / Temp ##########
-tmp/
-temp/
-cache/
-.quarantine/
-quarantine/
-_graveyard/
-
-########## Jupyter / Notebooks ##########
-.ipynb_checkpoints/
+logs/
 
-########## Docs builders ##########
-docs/_build/
-.site/
-.docusaurus/
-.vuepress/dist/
+# Database files
+*.db
+*.sqlite
+*.sqlite3
 
-########## Node / Frontend (nếu có) ##########
-node_modules/
-.npm/
-.pnpm-debug.log*
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-.yarn/
-web_modules/
-.next/
-.nuxt/
-out/
-.dist/
-
-########## IDE / Editors ##########
-.vscode/
-.idea/
-*.iml
-*.ipr
-*.iws
-.history/
-.vscode-test/
+# Coverage reports
+htmlcov/
+.coverage
+coverage.xml
 
-########## OS junk ##########
-.DS_Store
-Thumbs.db
-ehthumbs.db
-.Spotlight-V100
-.Trashes
+# Test artifacts
+.pytest_cache/
+.tox/
 
-# ─────────────────────────────────────────────────────────────
-# END
-# ─────────────────────────────────────────────────────────────
+# Temporary files
+temp/
+tmp/
+*.tmp