fix: deepcopy cache entries to prevent confidence-cap mutating the cache (audit #3)

docs: comprehensive README update + VERSION 8.4.0 -> 8.5.0

fix: methods_used fallback, HEIC extensions, CORS, Content-Length pre-check

feat: TIFF and HEIC/HEIF format support

test: 37 tests for MCMC, Platt calibration, and stable evidence IDs

chore: VERSION 7.7.0 -> 7.8.0, update version assertions

feat: Noiseprint camera fingerprint and CFA Bayer artifact detectors

feat(feature): webhook delivery system with HMAC signing and retry

fix(config): replace os.getenv() defaults with proper pydantic-settings fields

fix(paths): resolve all storage files relative to package, not CWD

fix(cache): remove double TTL check; wrap set() in RLock

fix(ci): fix 10 test failures from previous commits

fix(concurrency): audit log write lock + timestamped rotation backup

fix(concurrency): move cache TTL check inside threading.Lock

security+fix: torch.load weights_only, cache thread safety, sse cleanup

fix(audit): use live VERSION from settings, add 50MB rotation cap

feat(sse): real-time signal waterfall via Server-Sent Events

feat(polish): frontend hardening, rate limit consolidation, v7.0.0

chore(version): bump VERSION to 6.7.0

fix(cleanup): final pre-release audit — emojis, unused vars, version, CI trigger, starlette CVE

fix: audit pass — unused imports, None crash guard, emojis, accuracy claims, broken f-strings

feat: Phase 3 — audit log, analysis history API, evidence_id in UI

Fix: add GitHub Pages and HF Space to default CORS origins

Fix: Add ALLOWED_DOC_TYPES and use tuples for type validation

Fix: Add ALLOWED_DOC_TYPES to Settings

Fix: Change sets to tuples to support concatenation

Fix: Add ALLOWED_VIDEO_TYPES to Settings (empty set)

Fix: Add missing Set import to config.py

Fix: Add ALLOWED_IMAGE_TYPES and ALLOWED_UPLOAD_EXTENSIONS to Settings

Config: Update production configuration with environment variables

Refactor cache methods to accept file identifier types

Add model caching infrastructure (#35)

Add architecture hardening: rate limiting, caching, and CI/CD (#14)

Add file validation utility (#4)

Add centralized logging configuration

Add backend configuration system (#1)

Initial commit: Project structure and documentation