Remove Heroku deployment and add default patterns feature

Merge branch 'update-ai-model-and-add-docker-compose'

Fix docker-compose security and robustness issues

Update AI model to claude-sonnet-4-6 and add docker-compose

.env.sampleのAIモデルをhaiku4.5に変更

Fix Mac Preview PDF display issue by improving PyMuPDF redaction handling

Fix Heroku multi-worker memory store issue by using single worker

Fix Heroku version detection using environment variables

Fix Heroku deployment to include Git tags for version detection

Update README with web app, security features, and release management

Add dynamic Git tag-based version display

Implement memory-based PDF processing for enhanced security

Fix shallow clone issue for Heroku deployment

Use working Heroku deployment workflow with CLI install

Switch to more stable Heroku deploy action