Commit Graph
397 Commits
Author SHA1 Message Date
SnapOtter 9a1d3d25f4 fix(docker): resolve 4 release-blocking issues from validation
- fix(rate-limit): treat RATE_LIMIT_PER_MIN=0 as unlimited (50k/min)
  instead of blocking all requests. @fastify/rate-limit interprets
  max:0 as "allow zero requests," breaking fresh container startups.

- fix(docker): add libgles2 for MediaPipe face detection tools.
  blur-faces, red-eye-removal, enhance-faces, and passport-photo
  failed with "libGLESv2.so.2 not found" on all headless containers.

- fix(docker/arm64): remove conflicting system libheif1 to avoid
  ABI symbol mismatch with our custom libheif 1.21.2 build.
  heif-convert failed with "undefined symbol: heif_get_plugin_directories."

- fix(docker/arm64): pre-install wheel+setuptools in base Python venv
  so basicsr can build from source on arm64 (no pre-built wheel).
  This unblocks upscale-enhance and photo-restoration bundles.
2026-06-08 14:07:55 +08:00
SnapOtter 7db6bb97da docs: add per-tool API documentation and fix parity gaps
- Create 53 per-tool VitePress documentation pages with accurate
  parameters from Zod schemas, example requests, and response formats
- Add root llms.txt for LLM-friendly repo browsing
- Fix OpenAPI spec: add auth and 422 error schemas to
  edit-metadata/inspect and strip-metadata/inspect sub-routes
- Fix tool count inconsistency (52 -> 53) across landing site,
  e2e tests, and local docs
- Rename color-adjustments.ts to adjust-colors.ts to match tool ID
- Update VitePress sidebar with all 8 tool categories and top nav
2026-06-08 11:52:28 +08:00
SnapOtter ace41168bc fix(security): harden API against pentest findings
- Default TRUST_PROXY=false to prevent XFF rate limit bypass (PT-01)
- Return 400 instead of 500 on malformed JSON input (PT-03)
- Default MAX_PIPELINE_STEPS=20 to prevent DoS (PT-04)
- Validate clientJobId length (max 128) across all routes (PT-06)
- Add security headers to all reply.hijack() streaming responses (PT-07)
- Sanitize usernames in audit log to prevent stored XSS (PT-08)
- Block TRACE method with 405 response (PT-10)
- Add 429 RateLimited response to OpenAPI spec (PT-12)
- Default MAX_SVG_SIZE_MB=50 to limit SVGZ decompression (PT-13)
- Pin Dockerfile base images by digest
- Sanitize OIDC IdP error and sub claim in audit log
- Sync Docker compose/Dockerfile defaults with env.ts
2026-06-07 21:54:27 +08:00
SnapOtterandGitHub 73b259462a fix: resolve 7 bugs from QA sweep (#208)
- Fix selective metadata stripping (P1): use Sharp's keepExif()/keepIccProfile()
  instead of broken withMetadata({}) that preserved everything
- Fix meme font mapping (P1): add ArchivoBlack and ComicNeue fonts, map
  arial-black and comic-sans to correct TTF files instead of Anton
- Fix meme contentType (P2): detect actual output format from Sharp metadata
  instead of hardcoding image/png
- Fix info/text-overlay/color-palette i18n (P2): wire up existing translation
  keys that were imported but never used
- Fix info and color-palette displayMode (P2): change from before-after to
  no-comparison since neither tool produces a processed image
- Add missing i18n keys across all 21 locales
- Update displayMode test assertions
2026-06-07 18:27:09 +08:00
SnapOtterandGitHub 5a32e29b8c fix(security): security audit and hardening (#207)
* fix(security): harden SVG sanitizer, rate limiting, and analytics defaults

- SVG: add control-char stripping in href values to block whitespace/null-byte
  obfuscated javascript: URIs; block <feImage> with external href (SSRF via
  SVG filter primitives); expand test suite to 32 inline bypass payloads
- Rate limiting: add per-route limits on tool endpoints (60/min) and batch
  (20/min); fix compose files defaulting RATE_LIMIT_PER_MIN to 0 which mapped
  to 50,000 in code; simplify rate limit registration to use env.ts default
- Analytics: default ANALYTICS_ENABLED to false so self-hosters do not
  unknowingly send telemetry
- Docker: add --max-time 5 and -s flags to compose healthcheck curl commands

* fix: remove stale login limit bypass, reduce error log noise, clean up fixtures

- Fix getLoginAttemptLimit() ignoring LOGIN_ATTEMPT_LIMIT when global rate
  limit exceeded 1000/min, which let the global limit override the stricter
  per-route login brute-force protection
- Downgrade rate limit 429 responses from error to warn level in the global
  error handler to avoid log noise and unnecessary Sentry reports
- Log 4xx client errors at warn level instead of error level
- Remove 11 orphaned SVG attack fixture files replaced by inline test payloads
2026-06-07 10:43:52 +08:00
SnapOtter 6b037e3abc feat: add html file upload mode to html-to-image tool 2026-06-06 21:45:39 +08:00
SnapOtter 5bcc357725 chore: update tool counts and references for html-to-image (53 tools) 2026-06-06 21:45:39 +08:00
SnapOtter a8b79f9da5 docs: add html-to-image tool to API docs, OpenAPI, and LLM docs 2026-06-06 21:45:39 +08:00
SnapOtter 5760d6723f feat: add browser service shutdown to server lifecycle 2026-06-06 21:45:38 +08:00
SnapOtter d9959d6686 feat: implement html-to-image API route with SSRF protection 2026-06-06 21:45:38 +08:00
SnapOtter da5b248582 feat: add browser service singleton for html-to-image captures 2026-06-06 21:45:38 +08:00
SnapOtter f64cbdda4e fix: block hex IPv4-mapped IPv6 in SSRF guard
The WHATWG URL parser canonicalizes dotted IPv4-mapped IPv6 literals
(e.g. ::ffff:127.0.0.1) to hex form (::ffff:7f00:1). The SSRF guard
only checked the dotted form, so hex literals bypassed the private-IP
classifier and allowed access to loopback, cloud metadata, and RFC1918
addresses.

Decode hex IPv4-mapped suffixes to dotted IPv4 before the private-range
check.

Reported-by: tonghuaroot
2026-06-06 20:27:48 +08:00
SnapOtter 3b84fab765 feat: add enterprise licensing and S3 storage backend
Add the enterprise package with Ed25519 license key validation and
feature gating. Enterprise code lives in the public repo under a
proprietary license (Cal.com/PostHog model), protected legally, not
by code hiding.

Implement S3-compatible storage backend as the first enterprise
feature. The file-storage module now delegates to either local
filesystem or S3 based on STORAGE_MODE env var. Works with AWS S3,
Cloudflare R2, DigitalOcean Spaces, MinIO, and any S3-compatible
provider. Workspace files remain local (ephemeral processing).

New env vars: STORAGE_MODE, S3_BUCKET, S3_REGION, S3_ENDPOINT,
S3_ACCESS_KEY_ID, S3_SECRET_ACCESS_KEY, S3_FORCE_PATH_STYLE,
S3_PREFIX, SNAPOTTER_LICENSE_KEY.

Tested against MinIO: 10 S3 integration tests + 82 existing tests
pass with zero regressions.
2026-06-06 20:17:49 +08:00
SnapOtter 66e503730d fix: resolve 6 production Sentry errors
- Prevent @fastify/static double-registration crash via decorateReply guard
- Fix non-ASCII filename header encoding (X-Output-Filename + RFC 5987 Content-Disposition)
- Add EACCES error handling to all startup mkdir calls with actionable messages
- Add WAL autocheckpoint and journal size limit to prevent unbounded SQLite growth
- Fix Python sidecar EPIPE handling to reject pending requests and trigger restart
- Ensure Docker entrypoint creates all subdirectories before chown
2026-06-06 16:05:59 +08:00
SnapOtter 80957f6e10 feat: improve remove background with edge smoothing, color decontamination, output formats
- Expose birefnet-hr-matting in UI (People/Ultra) and fix model defaults
  (People/Max now uses birefnet-matting for true alpha matting)
- Add output format selector (PNG/WebP/AVIF) with lossless alpha support
- Add edge smoothing post-processing (Off/Light/Medium/Strong) via
  morphological mask refinement to reduce gray halo artifacts
- Add color decontamination to remove background color spill from
  semi-transparent edge pixels
- Thread new settings through full stack: frontend -> API schema ->
  Python sidecar -> Sharp effects pipeline
- Add i18n keys for all 21 locales
- Add unit tests for new option serialization (3 tests)
- Add integration tests for new settings validation (4 tests)
2026-06-05 23:05:25 +08:00
SnapOtter 005fe1d982 fix: extend SSE result retention from 2 to 10 minutes for mobile recovery 2026-06-05 21:43:55 +08:00
SnapOtterandGitHub 01421640b5 fix: resolve file library Open File bug, upload reliability, and SSE proxy timeouts (#203)
The Open File button in the Files section did nothing due to a race
condition where the home page reset the file store on mount before files
from handleOpenFile could render. Upload on the files page used fetch
with no timeout, progress, or retry, causing silent failures on mobile
and slow connections. SSE connections for job progress had no keepalive
pings, allowing reverse proxies to kill idle streams.
2026-06-05 19:01:40 +08:00
SnapOtter e03c6089af feat: support downloadFn-based model manifests and improve install error messages
Add support for models defined via downloadFn/args (rembg_session,
hf_snapshot) in bundle verification, recovery, and uninstall paths.
Previously only path-based models were tracked, so bundles using
rembg or HF snapshot downloads appeared broken after install.

Also improve pip install error messages with user-friendly hints for
common failures (basicsr build issues, OOM, disk full) and add better
error context for rembg session download failures.
2026-06-04 22:27:44 +08:00
SnapOtter e70fca054a fix: replace hardcoded "52 tools" with "50+" across all copy
Future-proofs marketing text so it doesn't need updating every time
a tool is added.
2026-05-20 14:45:45 +08:00
SnapOtter dfbc4cfd59 chore(release): 1.17.1
Bump version across all workspaces, update changelog, release notes,
OpenAPI spec, bug report template, and OpenSSF badge answers.
2026-05-18 19:10:56 +08:00
SnapOtterandGitHub 9941a1db03 feat: add 52 per-tool SEO landing pages and public changelog (#145)
* feat: add 52 per-tool SEO landing pages and public changelog

- Create individual landing pages for all 52 tools at /tools/{slug}
  with search-intent title tags, unique FAQs (156 Q&As), per-tool
  features, and rich schema markup (BreadcrumbList, WebApplication,
  HowTo, FAQPage)
- Replace static sitemap.xml with dynamic generation including all
  tool URLs
- Refactor bento grid to import from @snapotter/shared (eliminates
  330 lines of duplicated tool data) and link cards to tool pages
- Add @snapotter/shared as workspace dependency to landing site
- Add public changelog page to docs site with curated release notes
  from v1.8 through v1.17
- Update docs nav and sidebar with changelog link

* feat: enhance SEO and performance with updated metadata, robots.txt, and llms.txt
2026-05-18 16:39:54 +08:00
SnapOtter 697566d00e fix: pre-decode HEIC/HEIF in info tool to prevent stats failure
Sharp can read HEIF container headers (metadata succeeds) but cannot
decode HEVC pixels (stats fails with "No decoding plugin installed").
Unconditionally pre-decode HEIF files via heif-dec CLI before any Sharp
operations, matching the createToolRoute factory behavior.
2026-05-18 14:44:21 +08:00
SnapOtter 36431bce48 fix: improve AI feature install error handling and resource limits
Handle OOM kills (exit code 137) with actionable memory guidance,
filter ANSI/progress noise from error output, add --no-cache-dir to
pip installs, reduce download concurrency to 2, and bump default
container memory from 4g to 6g.
2026-05-18 10:19:43 +08:00
SnapOtter 3e06d68f4f chore: bump version to 1.17.0 and update docs for release
- Bump all workspace package versions to 1.17.0
- Update APP_VERSION constant and OpenAPI spec
- Update AI tool count from 15 to 16 across docs and i18n
- Update tool table with AI Canvas Expand, Meme Generator, Beautify
- Add image editor, OIDC, and 20 languages to README features
- Add release notes for v1.17.0
- Add JSON-LD structured data and SEO improvements to landing/docs
2026-05-16 12:48:02 +08:00
SnapOtter ec85f88746 fix: anonymous mode settings, permissions, and FK constraints (#135)
- Grant admin role to anonymous user when AUTH_ENABLED=false
- Add DEFAULT_TOOL_VIEW env var (sidebar|fullscreen)
- Hide auth-dependent settings sections when auth disabled
- Fix session endpoint to return admin role consistently
- Seed anonymous user row in DB to satisfy FK constraints
- Add 25 new tests covering anonymous mode behavior

Closes #135
2026-05-16 12:37:52 +08:00
SnapOtter 4c997f73e0 fix: seed anonymous user row in DB and add comprehensive test coverage
When AUTH_ENABLED=false, seed an "anonymous" user row in the users
table so API keys, pipelines, and user files don't fail with FK
constraint violations. Previously, the synthetic anonymous user only
existed in memory (attached by the middleware), but any DB operation
referencing userId "anonymous" would violate foreign key constraints.

Also adds 25 new tests covering:
- Integration: ensureAnonymousUser, FK constraints, settings save,
  API key and pipeline operations for anonymous mode
- Frontend: useAuth hook anonymous happy path (role, permissions,
  hasPermission, session endpoint bypass)
- Frontend: settings dialog nav filtering (authRequired hides
  security/people/teams/roles when auth disabled)
- Backend: session endpoint returns admin role when auth disabled
2026-05-16 12:36:06 +08:00
SnapOtter 0d0fd760e5 fix: return admin role from session endpoint when auth is disabled
The GET /api/auth/session endpoint still returned role "user" and
user-level permissions when AUTH_ENABLED=false, inconsistent with the
middleware which now assigns role "admin". Fix the session endpoint to
match so API clients get the correct role.
2026-05-16 12:25:28 +08:00
SnapOtter 212ef653b5 fix: resolve 5 Sentry production errors (668 total events)
- Filter known client-error noise (rate limit, empty body, unsupported
  media type, content-length mismatch, premature close) from Sentry
  via beforeSend to stop 644 events of non-actionable noise
- Sanitize x-output-filename header to prevent TypeError on non-ASCII
  filenames in optimize-for-web preview (23 events)
- Handle EPIPE on Python dispatcher stdin write with graceful fallback
  to per-request spawning instead of crashing (NODE-W)
- Map EACCES on storage directory/file write to proper 503 status
  instead of generic 500 (NODE-P, 3 events)
2026-05-16 12:22:24 +08:00
SnapOtter f86ef124c2 fix: grant admin role to anonymous user and add DEFAULT_TOOL_VIEW env var
When AUTH_ENABLED=false, the anonymous user was assigned the "user" role
which lacks settings:write permission, making all settings saves return
403. Since no admin exists when auth is disabled, settings were
permanently read-only. Promote the anonymous user to "admin" so the
single user has full control of the instance.

Also adds DEFAULT_TOOL_VIEW env var (sidebar|fullscreen) following the
existing DEFAULT_THEME pattern, seeded via ensureDefaultSettings() on
first boot.

Closes #135
2026-05-16 11:37:28 +08:00
SnapOtter 2c45a3a9e8 fix: update tool count to 52 and add ai-canvas-expand to landing page
ai-canvas-expand was added to constants.ts and route files but never
added to the landing page bento grid, causing all hardcoded counts
to remain at 51. This updates all references across source, docs,
i18n, and tests to reflect the correct count of 52 tools.
2026-05-16 10:02:19 +08:00
SnapOtter a01a65e9ac docs: complete API sync and documentation audit
Audit all 52 tools and 119 API operations against the OpenAPI spec.
Fix schema mismatches, add missing endpoints, and update all doc surfaces.

OpenAPI spec (apps/api/src/openapi.yaml):
- Add operationId to all 119 operations for SDK code generation
- Add descriptions to 17 operations that only had summaries
- Fix 9 bare error responses with proper content/schema blocks
- Fix wrong $ref on GET /api/v1/settings/{key} 404 (was UnauthorizedError)
- Fix 10 async AI tools using 200 instead of 202 Accepted
- Add missing JXL format to 9 tool enums (convert, collage, stitch, split,
  svg-to-raster, pdf-to-image, optimize-for-web, erase-object, noise-removal)
- Add 3 missing endpoints: POST /api/v1/fetch-urls, GET /api/v1/config/locale,
  POST /api/v1/tools/ai-canvas-expand
- Add missing meme-templates/fonts/{filename} endpoint
- Fix watermark-image and compose: settings not required (all have defaults)
- Fix compare similarity description (0-100 percentage, not 0-1)
- Fix find-duplicates: add nullable thumbnail, add skippedFiles response field
- Fix upscale format default ("auto" not "png"), add clientJobId fields
- Fix restore-photo: remove phantom mode param, fix denoiseStrength default,
  add missing colorizeStrength
- Fix smart-crop: add 5 missing parameter defaults
- Add missing params: image-enhancement deepEnhance, transparency-fixer
  removeWatermark, image-to-pdf collate, image-to-base64 jxl enum
- Fix files/{id}/thumbnail security (requires auth, was marked public)
- Annotate 7 empty description strings in pipeline/role schemas

Documentation surfaces:
- VitePress config: "50 tools" to "51 tools" (2 locations)
- README: add OIDC/SSO docs link
- getting-started.md: add Color Blindness Simulation to tool table
- database.md: fix hash descriptions (bcrypt/SHA-256 to scrypt)
2026-05-15 23:13:42 +08:00
SnapOtter 51bc2d5732 fix: QA sweep fixes across migration, security, lint, and e2e tests
- fix(db): migration 0012 column order mismatch causing NOT NULL
  constraint failure on existing databases; use explicit column
  mapping instead of SELECT *
- fix(db): disable FK checks during migrations to allow SQLite
  table-recreation pattern (DROP + RENAME)
- fix(security): filter cookie_secret and instance_id from settings
  API response for non-admin users
- fix(lint): resolve all 7 API lint warnings (noParameterAssign,
  noImplicitAnyLet) in compose, image-enhancement, and workspace
- fix(docs): correct permission count from 16 to 14 in CLAUDE.md
- fix(e2e): resolve 44 Playwright test failures across 8 spec files
  including locator specificity, compress mode defaults, format count,
  restore-photo UI drift, stitch image count, GIF animated fixtures,
  submit button timing, and processing timeouts
2026-05-15 22:41:22 +08:00
SnapOtter d38621d7b9 feat: add multi-language support for 20 locales
Add complete i18n infrastructure with 21 supported languages:
English, Simplified Chinese, Traditional Chinese, Japanese, Korean,
Spanish, French, Italian, Brazilian Portuguese, German, Dutch, Swedish,
Russian, Polish, Ukrainian, Arabic (RTL), Turkish, Hindi, Vietnamese,
Indonesian, and Thai.

- I18nProvider context with three-tier locale detection
  (user preference > navigator.languages > instance default > English)
- ~1500 translation keys per locale with TypeScript-enforced completeness
- Dynamic code-splitting: only the active locale is loaded at runtime
- Language selectors in footer, login page, settings, and mobile sidebar
- Arabic RTL support with CSS logical properties across all components
- Tool names, descriptions, and categories translated via i18n helpers
- Public API endpoint GET /api/v1/config/locale for instance default
- Multi-script font stack (CJK, Arabic, Devanagari, Thai, Cyrillic)
- format() and plural() helpers for interpolation and pluralization
- API error translation mapping (translateApiError)
- 36 Playwright e2e tests verifying all 21 locales load correctly
- 25 unit tests for format, plural, locale detection, and completeness
- Updated translations.md docs and CLAUDE.md conventions
2026-05-15 17:02:49 +08:00
SnapOtter b449bd1a56 fix(security): correct Docker rate limit defaults
- LOGIN_ATTEMPT_LIMIT: 500 -> 30 in Dockerfile (matching code default)
- RATE_LIMIT_PER_MIN=0 now means no global limit (50K ceiling) instead
  of 1 req/min, preserving backward compatibility with existing deploys
  while keeping per-route limits (login brute-force) active
2026-05-14 23:02:25 +08:00
SnapOtter ca2ef5b3f4 feat: add OIDC/SSO authentication (#3)
Add OpenID Connect (OIDC) authentication alongside existing
username/password login. Users can log in via any standards-compliant
OIDC provider (Keycloak, Authentik, Authelia, Google, Azure AD, Okta)
while preserving full backward compatibility.

- OIDC Fastify plugin with lazy discovery, PKCE, cookie-based sessions
- Login page OIDC button, auth hook updates, settings dialog badges
- 28 integration tests, OIDC setup guide with provider examples
- Fix pre-existing test failures (content-aware-crop, watermark, SVGZ)
- WAL checkpoint fix for SQLite test stability

Closes #3

# Conflicts:
#	apps/api/src/lib/env.ts
#	apps/api/src/routes/tools/watermark-image.ts
#	pnpm-lock.yaml
#	tests/integration/color-palette.test.ts
#	tests/integration/compare.test.ts
#	tests/integration/watermark-image.test.ts
2026-05-14 22:31:26 +08:00
SnapOtter cb8ddab8ae Merge branch 'security/comprehensive-hardening'
# Conflicts:
#	tests/integration/color-palette.test.ts
#	tests/integration/compare.test.ts
#	tests/integration/watermark-image.test.ts
2026-05-14 20:54:33 +08:00
SnapOtter 98531db7ed fix: correct corrupted-image test expectations and SVGZ watermark filename
Tests expected 422 for corrupted image data, but the API correctly
returns 400 since corruption is caught during validation (unrecognized
format), not during processing. Also fix watermark-image route passing
a hardcoded "watermark" string instead of the actual uploaded filename
to validateImageBuffer, which broke SVGZ detection.
2026-05-14 10:47:46 +08:00
SnapOtter cd24bb92b6 fix: update corrupted image test expectations from 422 to 400
validateImageBuffer catches corrupt image data before processing
reaches the tool handler, so the correct status code is 400 (bad
request) rather than 422 (processing failure). Also fix SVGZ
watermark validation by returning early for compressed SVG (Sharp
cannot read gzip-compressed SVGZ directly) and passing the actual
watermark filename to validateImageBuffer for correct format
detection.
2026-05-14 00:09:31 +08:00
SnapOtter 4e64ee2779 fix(security): comprehensive security audit and hardening
Auth: login rate limit 30/min (was 500), global rate limit 1000/min (was
unlimited), password/username max lengths on all Zod schemas, session
invalidation on role change, API key legacy scan bounded to 100 keys.

SVG: hardened regex sanitizer with CDATA stripping, XML entity decoding,
set/animate/iframe/embed blocking, comprehensive data: URI blocking,
use element external href blocking. 11 attack payload fixtures added.

SSRF: fixed DNS rebinding TOCTOU by pinning resolved IPs via custom
HTTP/HTTPS agents. Added 6to4 and NAT64 to blocked IPv6 ranges.

Docker: capability dropping (cap_drop ALL + minimal cap_add), resource
limits (4g/8g mem, 512/1024 pids), healthcheck timeout, password
removed from startup banner, default password warning comments.

Network: CSP and HSTS applied in all environments (not just production),
stack traces removed from all error responses, internal paths stripped
from error details, per-route rate limits on uploads (60/min) and URL
fetches (200/hour).

Files: exclusive temp file creation (O_EXCL), disk space circuit
breaker, per-user storage quotas, settings payload 64KB size guard.

Python sidecar: script name allowlist in dispatcher, minimal environment
for subprocess spawns.

Dependencies: fixed 6 production CVEs (drizzle-orm, fastify, fast-uri,
@fastify/static, next, archiver/lodash). Pinned all GitHub Actions to
SHA hashes.

114 security tests added. Full OWASP Top 10 penetration test matrix
verified against production Docker container (30/30 pass after
hardening).
2026-05-13 21:33:50 +08:00
SnapOtter f467191e9b fix(oidc): preserve authProvider on auto-link
Linked users keep authProvider="local" so they can still log in
with their local password. Only externalId is set during linking.
2026-05-13 20:11:11 +08:00
SnapOtter aaebd14c60 feat(oidc): register cookie and OIDC plugins, extend config endpoint 2026-05-13 19:01:30 +08:00
SnapOtter 71b6489a0d feat(oidc): implement OIDC Fastify plugin with login redirect and callback 2026-05-13 18:58:35 +08:00
SnapOtter ad4ca27f03 feat(oidc): update auth middleware for cookie extraction and OIDC user handling 2026-05-13 18:52:39 +08:00
SnapOtter 5a95af70f4 feat(oidc): add OIDC environment variables with cross-field validation 2026-05-13 18:49:29 +08:00
SnapOtter 877475d1c9 feat(oidc): add OIDC columns to users and sessions tables 2026-05-13 18:47:54 +08:00
SnapOtter c6a5d3f33e refactor: remove content-aware-crop tool
Remove the content-aware-crop tool entirely -- API route, frontend
settings component, e2e and integration tests, and all registry
entries.
2026-05-13 17:55:01 +08:00
SnapOtter 05720f350a Revert "feat: replace AI matting with chroma-based checkerboard detection"
This reverts commit f1a4c94375.
2026-05-13 17:20:33 +08:00
SnapOtter f1a4c94375 feat: replace AI matting with chroma-based checkerboard detection
The transparency-fixer now directly detects the baked-in checkerboard
pattern using per-pixel chroma analysis instead of BiRefNet AI matting.
Achromatic pixels in the gray range are classified as background
(transparent), chromatic pixels as foreground (opaque), with smooth
transitions at anti-aliased edges.

- No longer requires Python sidecar or background-removal bundle
- Watermark removal uses Sharp median(5) filter pre-processing
- Moved tool from "ai" to "utilities" category
- Removed from PYTHON_SIDECAR_TOOLS and background-removal enablesTools
- Near-instant processing (pure Sharp, no model inference)
2026-05-13 17:16:02 +08:00
SnapOtter 443e9a4ffa fix: replace broken LaMa watermark detection with median filter approach
The luminance anomaly detection + LaMa inpainting approach failed because
watermark signal on the matted foreground was too weak (10-15 units vs
threshold of 25). Median filter with kernel=5 effectively removes
semi-transparent watermark text while preserving the stamp structure.

Pipeline is now: median filter (if toggle on) -> BiRefNet matting -> defringe.
No longer requires object-eraser-colorize bundle for watermark removal.
2026-05-13 17:08:15 +08:00
SnapOtter 79cb570a3a refactor(api): remove mode, add colorizeStrength, lower denoise default to 25 2026-05-13 16:59:13 +08:00