Initial commit — iOS share extension for filing Gitea issues

Two-target Xcode project (xcodegen spec). The GiteaIssue container app
holds the base URL + personal access token in a shared keychain group;
the GiteaIssueShare extension reads them, surfaces a repo picker (with
recents) and a title/notes form, then creates the issue, uploads the
screenshot as an asset, and patches the body to embed it inline.

Min iOS 26.0, signing team V3PF3M6B6U.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.md

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+# Gitea Issue
+
+iOS share-extension for filing issues to a self-hosted Gitea instance straight from a screenshot.
+
+Take screenshot → Share → **Gitea Issue** → pick repo, title, notes → submit. The screenshot is uploaded as an attachment and embedded inline in the issue body.
+
+## Architecture
+
+Two targets in one Xcode project, sharing an App Group + Keychain:
+
+- **GiteaIssue** (`com.treytartt.GiteaIssue`) — container app, settings + help only
+- **GiteaIssueShare** (`com.treytartt.GiteaIssue.Share`) — share extension that does the real work
+- **App Group**: `group.com.treytartt.GiteaIssue` (cached repo list, recents)
+- **Keychain group**: `$(AppIdentifierPrefix)com.treytartt.GiteaIssue` (base URL, token)
+
+iOS 26.0 minimum. Signing team `V3PF3M6B6U`.
+
+## Layout
+
+```
+GiteaIssue/                Container app (settings + help)
+GiteaIssueShare/           Share extension UI
+Shared/                    Models, Keychain, Settings, GiteaClient, RepoCache
+project.yml                xcodegen spec — regenerate with `xcodegen generate`
+```
+
+## Build
+
+```bash
+xcodegen generate
+xcodebuild -project GiteaIssue.xcodeproj -scheme GiteaIssue \
+  -destination 'generic/platform=iOS' build
+```
+
+## Deploy (ad-hoc)
+
+Push to `admin/GiteaIssue` on Gitea, then trigger the Mac mini builder at
+`http://Treys-Mac-mini.local:3090` against the git URL. Builder ships the IPA
+to `https://appstore.treytartt.com` for OTA install.
+
+## First-time setup on device
+
+1. Install via Safari from `appstore.treytartt.com`
+2. Open the Gitea Issue app, set base URL + personal access token (`repo` scope)
+3. Tap **Save & test connection** — confirms login and pre-fetches the repo list
+4. From now on: Photos → screenshot → Share → Gitea Issue