docs: comprehensive wiki update and gap fill

[bakerboy448]

Summary

Comprehensive wiki audit + restructure cross-referenced against the live Notifiarr website integration UI (PHP under website-source/integrations/frontend/) and the client Go source (pkg/triggers/, pkg/apps/, pkg/configfile/). Rebased on top of upstream PR #36 (Apprise official link).

5 purposeful commits, +2,204 / −656 across 80 files. mkdocs build --strict passes with zero warnings.

Commits (in review order)

1. docs: replace COMING SOON integration stubs with full pages, add qui

Fills 12 integration pages that were stubs: Apprise, Cronitor, CrossSeed, DiscordApp, Duplicacy, PackageManager, QbitManage, Reciperr, SimonSays, StarrProxy, Synology, Watchtower. Adds a brand-new qui integration page (torrent / backup / directory-scan / orphan-scan / cross-seed / automation triggers). Apprise content merged with upstream PR #36's official notifiarr:// URL format.

2. docs: add new client feature pages

Seven previously-undocumented client features: Actions, Commands, Endpoints, File Watcher, Metrics, Site Tunnel, System. Defaults verified against the Go source (e.g. commands default Timeout is 15s per pkg/triggers/commands/setup.go defaultTimeout).

3. docs: audit and refresh existing integration pages

35 existing integration pages refreshed. Highlights:

• Starr (Sonarr/Radarr/Lidarr/Readarr/Prowlarr) trigger labels now match the actual web UI: Imported (not Downloaded), Database Backup / Database Corrupt, Health Check / Health Notifications, Updates / Update Notifications, Grab Notifications (Prowlarr-only).
• Sonarr step 1: Webhook → Notifiarr (matches the intro line which already says "uses its built-in Notifiarr connection").
• Dockwatch: added the missing Security trigger.
• Kometa: removed the unverifiable "default error channel" routing claim.
• mdblist: trigger names List Updates / Add Movie / Add Show; List Tags field; corrected Sonarr Season Monitoring option list.
• channelstats: required permission is manage channels (not manage roles).
• bazarr: "notification style" (Simple / Formatted) per PHP, not "notification format".
• crowdsec: aligned YOUR_APIKEY_HERE placeholder + UI label Show a map for the IP.
• crossseed: clarified Lookup is a Results sub-type, not a standalone toggleable trigger.
• discordApp: replaced the unverifiable "8 channels" claim with the 7 actual UI tabs.
• GitHub: brand normalized to GitHub.
• jellyfin: section headers Title Case (not NOTIFIARR / JELLYFIN ALL CAPS).
• network / snapshots / qbitmanage: H1 titles match filename + upstream branding.
• websitestatus: pre-defined websites (the page previously said "pre-defined indexers", a copy-paste leftover).
• fail2ban: sudo systemctl restart fail2ban (the previous fail2ban-client restart is not a valid subcommand).
• passthrough: corrected the Powershell copy-paste bug (referenced $request.details.response but the assigned variable was $response).
• Broad typo / grammar pass: too → to, Witch channel → Which channel, A API → an API, capitalize list items, missing apostrophes, etc.

4. docs: audit and refresh client, website, FAQ, and ancillary pages

Existing client install/config/troubleshooting + website-side integration management + FAQ / quickstart / custom bot / permissions / translations. Verified-against-source corrections:

• client/commands default Timeout 15s (was 10s in docs).
• client/endpoints adds the missing Valid SSL setting row (epconfig.Endpoint.ValidSSL).
• client/install Synology section: link now points at install-synology.sh (matches the actual curl command on the next line); fixes the $USR → $USER typo in the manual UltraCC systemd template; Notifarr → Notifiarr; URLs wrapped in backticks in the Windows section.
• client/healthChecks: pinned commit-SHA URLs replaced with /tree/main/ (so links don't rot); [website] reference now points to notifiarr.com, not nightly.notifiarr.app.
• client/cloudflare: one.dash.cloudflare.com (lowercase, current production host).
• client/troubleshooting: deduplicated Config File Compression and Gibberish Config File (same procedure was described twice).
• website/clientConfig: Witch channel → Which channel; subscriber callout split for clarity.
• faq: where → were; legacy notifiarr.wiki URL replaced with the relative path used elsewhere on the page.
• quickstart: completed the truncated Client Connection sentence.

5. docs: add Seerr integration, retire legacy pages, fix nav

In February 2026 the upstream Jellyseerr and Overseerr teams merged into a single project called Seerr (upstream announcement). Notifiarr followed by replacing both standalone integrations with a unified seerr.php in the web UI. This commit:

• Adds docs/pages/integrations/seerr.md mirroring the unified integration: 7 triggers (Pending / Approved / Auto approved / Declined / Available / Failed / Issues), all notification fields, Local URL setting, /api/v1/notification/seerr/<api_key> webhook URL.
• Converts jellyseerr.md and overseerr.md into short deprecation notices that point at the new Seerr page and explicitly attribute the unification to the upstream teams (not a Notifiarr decision).
• mkdocs.yml: adds Seerr to the integrations nav.
• Removes docs/pages/client/configuration.md and docs/pages/client/setup.md (deprecated stubs whose content moved into install.md / afterInstall.md and is now covered by the new feature pages in commit 2).

Verification

• mkdocs build --strict passes with zero warnings
• All internal links resolve
• All referenced screenshot files exist
• Trigger names match the actual web UI (integrations/frontend/*.php)
• Client config defaults verified against pkg/configfile/ and pkg/triggers/
• Apprise content reconciles with upstream PR Update Apprise documentation with official link #36
• Seerr URL / endpoint verified against website-source/integrations/frontend/seerr.php + admin/tests.php