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>

GiteaIssueShare/Info.plist

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleDevelopmentRegion</key>
+    <string>$(DEVELOPMENT_LANGUAGE)</string>
+    <key>CFBundleDisplayName</key>
+    <string>Gitea Issue</string>
+    <key>CFBundleExecutable</key>
+    <string>$(EXECUTABLE_NAME)</string>
+    <key>CFBundleIdentifier</key>
+    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleName</key>
+    <string>$(PRODUCT_NAME)</string>
+    <key>CFBundlePackageType</key>
+    <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+    <key>CFBundleShortVersionString</key>
+    <string>$(MARKETING_VERSION)</string>
+    <key>CFBundleVersion</key>
+    <string>$(CURRENT_PROJECT_VERSION)</string>
+    <key>NSExtension</key>
+    <dict>
+        <key>NSExtensionAttributes</key>
+        <dict>
+            <key>NSExtensionActivationRule</key>
+            <dict>
+                <key>NSExtensionActivationSupportsImageWithMaxCount</key>
+                <integer>1</integer>
+            </dict>
+        </dict>
+        <key>NSExtensionPointIdentifier</key>
+        <string>com.apple.share-services</string>
+        <key>NSExtensionPrincipalClass</key>
+        <string>$(PRODUCT_MODULE_NAME).ShareViewController</string>
+    </dict>
+</dict>
+</plist>