gitea, extracted into plugins/gitea — the platform half

Eleventh extraction, and the only one that deleted its UI instead of moving it.
Seventeen files under apps/Gitea/ reimplemented a fraction of an interface
Gitea already has; the plugin renders the real one in an iframe over a
same-origin proxy.

Deleting rather than moving removed a platform change nobody now has to build:
useGiteaLocation read :owner/:name/:tab/:item from five route patterns where a
plugin gets two, so an as-is extraction would have required teaching the plugin
system to declare extra route patterns. Nothing inside an iframe needs a route.

Nothing working was lost. The router had been commented out of hono.ts since
2026-08-13 with api: [], and officer-gitea was running nowhere — the screen
rendered and every request 404'd, like soulseek, jellyfin and invoices before
it.

Gitea also stops being a CORE DOCK ITEM. It was hardcoded in CORE_DOCK_ITEMS,
the only installable feature that was, on the reasoning that it fronts a remote
instance and installs nothing locally. As a plugin its tile arrives from
assets/icon.png like every other — which is also why the icon added to
public/icons/ this morning was reverted rather than kept.

'gitea' stays in the ServiceName union: the connection lives in core
service_connections, and gitea is the reason that table has its "member rows
carry only a token and inherit the owner's URL" shape at all.

registry.test.ts's grantable-permission test named gitea as "the case this was
built for"; a plugin's permissions are registered at install and are never in
that compile-time list, so it now names a core one. catalogue.test.ts
re-anchored to vnc/notify.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/apps/officer-web/state/usePageTitle.ts

@@ -24,7 +24,6 @@ const RULES: TitleRule[] = [
   { match: (p) => p.startsWith('/marketplace'), title: 'Marketplace' },
   { match: (p) => p.startsWith('/plugins'), title: 'Marketplace' },
   { match: (p) => p.startsWith('/command-hq'), title: 'Command HQ' },
-  { match: (p) => p.startsWith('/gitea'), title: 'Gitea' },
   { match: (p) => p.startsWith('/system-monitor'), title: 'System Monitor' },
   { match: (p) => p.startsWith('/qr-transfer'), title: 'QR Transfer' },
   { match: (p) => p.startsWith('/activity'), title: 'Activity' },