iPhone and iPad app: the same features, served from the Frame

An iPhone can't run Python or ssh, but the Frame can. The app (ios/, SwiftUI)
connects with its own SSH key (Citadel), copies the server and helpers to
~/.cache/frame-control/<version> on the Frame once per version, starts
ui/server.py there with FRAME_LOCAL=1 on the Frame's 127.0.0.1, and shows the
page through an SSH tunnel. The server exits when the phone disconnects.

Server: FRAME_LOCAL=1 puts ui/local-bin on PATH, whose ssh stand-in runs each
`ssh frame COMMAND` locally (and serves as rsync's transport), so desktop and
phone share one code path. Android display goes through podman exec there, as
the Frame has no adb. FRAME_UI_KEY replaces the fixed X-Frame-UI value with a
per-session key. Power actions take the Developer Mode password via sudo -S.
--port 0 now prints the port it took.

Page: a bottom tab bar and safe areas on phones, Play buttons visible on touch
screens, saving through the share sheet, SSH/SFTP/Steam Link/remote desktop
opening in their iOS apps, and a password dialog for power.

App: pairing with the Developer Mode password once (never stored) or with a
key the user adds; host key pinned on first use; plain-language connection
errors with quiet retries; frame-control://install links; alerts and confirms.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

ios/FrameControl/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -0,0 +1,4 @@
+{
+  "colors" : [ { "color" : { "color-space" : "srgb", "components" : { "alpha" : "1.000", "blue" : "0xFF", "green" : "0x9F", "red" : "0x1A" } }, "idiom" : "universal" } ],
+  "info" : { "author" : "xcode", "version" : 1 }
+}

ios/FrameControl/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,4 @@
+{
+  "images" : [ { "filename" : "icon-1024.png", "idiom" : "universal", "platform" : "ios", "size" : "1024x1024" } ],
+  "info" : { "author" : "xcode", "version" : 1 }
+}

ios/FrameControl/Assets.xcassets/AppIconImage.imageset/Contents.json

@@ -0,0 +1 @@
+{ "images" : [ { "filename" : "icon.png", "idiom" : "universal" } ], "info" : { "author" : "xcode", "version" : 1 } }

ios/FrameControl/Assets.xcassets/Contents.json

@@ -0,0 +1 @@
+{ "info" : { "author" : "xcode", "version" : 1 } }