Add read-only iCloud Photos support to the existing iclouddrive
backend via `service = photos` config option.
Also includes auth improvements on top of #9209's SRP authentication.
**Photos features:**
- 3-level hierarchy: libraries (Personal + Shared Photo Library) →
albums → photos/videos
- server-side smart albums (All Photos, Videos, Favorites,
Screenshots, Live, Bursts, Panoramas, Slo-mo, Time-lapse, Portrait,
Long Exposure, Animated, Hidden, Recently Deleted)
- User-created albums and nested album folders
- Live Photo `.MOV` companions as first-class entries
- Edited photo versions (`-edited` suffix) and RAW alternatives
- Duplicate filename dedup for camera counter wrap collisions
- Parallel cold listing for large albums
- Delta sync via CloudKit `changes/zone` - warm listings near-instant from disk cache
- Disk cache (libraries, albums, photos) with atomic writes for crash safety
- `ChangeNotify` support for FUSE mounts via `changes/zone` polling
- `ListR` support for `--fast-list` and recursive operations
- `--metadata` support - width, height, added-time, favorite, hidden
- Fresh download URLs per file - no stale URL failures on long copies
- FUSE mount documentation with recommended flags
**Auth improvements over #9209:**
- SMS 2FA fallback for users without trusted Apple devices
- Explicit push notification request - fixes iOS/macOS 26.4+ where 409
no longer auto-pushes
- Thread safety for concurrent FUSE callers (mutexes on session and client state)
- Session endpoint caching - skips ~5s `/validate` round-trip on warm start
- `Disconnect` support - clears auth state + disk cache
- PCS cookie support for Advanced Data Protection accounts, including
trusted-device approval for PCS cookies
Built on @coughlanio's Photos PoC (Closes#8734) and @mikegillan's SRP auth (#9209).
Fixes#7982
Co-authored-by: Chris Coughlan <chris@coughlan.io>
Apple has deprecated the legacy /appleauth/auth/signin endpoint and
now blocks it, causing "Invalid Session Token" errors for all users
when their trust token expires. The browser login flow now requires
SRP (Secure Remote Password), a cryptographic handshake that never
transmits the password.
Replace Session.SignIn() with a multi-step SRP-6a flow:
1. authStart - initialize session at /authorize/signin
2. authFederate - submit account name to /federate
3. authSRPInit - exchange client public value for salt/B at /signin/init
4. authSRPComplete - send M1/M2 proofs to /signin/complete
The SRP implementation uses the RFC 5054 2048-bit group with SHA-256
and Apple's NoUserNameInX variant. Password derivation supports both
s2k and s2k_fo protocols via SHA-256 + PBKDF2.
The 2FA and trust token flow is unchanged. Auth headers for all
idmsa.apple.com requests now include X-Apple-Auth-Attributes,
X-Apple-Frame-Id, and use Origin/Referer of https://idmsa.apple.com.
Fixes#8587
- replace Bootstrap/jQuery with purpose-built CSS and JS
- remove backend icons from navbar and content pages
- replace remaining FontAwesome icons with inline SVGs, remove FontAwesome
- modernize CSS styling for menus, typography, cards, tables, and code blocks
- add copy-to-clipboard buttons on code blocks using SVG icon
- move TOC to left sidebar with responsive overlay drawer
- add sticky header, top scrollbar and first column for wide tables
- add left/right arrow buttons to scrollable tables
- hide homepage logo on mobile
- make wide menus with filter for Commands and Storage Systems
- add dark mode support based on browser preference
- fix CSS/JS cache busting to use build time
Replace custom rem hugo shortcode template with HTML comment. HTML comments are now
allowed in Hugo without enabling unsafe HTML parsing.
Improve the text in the comment: Remove unnecessary quoting, and avoid impression that
make backenddocs has to be run and results committed, since we have a lint check which
will then report error because we want to prevent manual changes in autogenerated sections.
Disable the markdownlint rule line-length on the autogenerated marker line.
Make the autogenerated marker detection a bit more robust.
See #8942 for more details.