iOS: player tokens in the keychain, and a build that uploads (#419)

The player rode only on the web view's Cloudflare Access cookie, so it
stopped with "Sign in again" when that session ended, and CarPlay (#420),
which has no web view, would have had nothing at all. Credentials.swift
keeps an ipx API token and an Access service token in the keychain, and
the player sends them (Authorization: Bearer, CF-Access-Client-Id and
-Secret) on its audio, position, read-flag and artwork requests. Without
all three it uses the cookie as before. Shake, Player Tokens enters them.

project.yml gets what TestFlight needs: the team, a numeric version
(App Store Connect refuses 0.1.0-dev), upside-down portrait (an iPad
build fails validation without every orientation) and
ITSAppUsesNonExemptEncryption. Resources/Info.plist is generated by
XcodeGen and now ignored.

Not run on a phone: the header option on AVURLAsset is read by name, as
the SDK has no constant for it.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

ios/project.yml

@@ -29,6 +29,8 @@ targets:
         # Playing on with the screen locked. A plist key, not a signed entitlement, so it works on
         # a free personal team; CarPlay's own dashboard app is an entitlement Apple has to grant.
         UIBackgroundModes: [audio]
+        # HTTPS only, so TestFlight need not ask the export-compliance question on every build.
+        ITSAppUsesNonExemptEncryption: false
         UILaunchScreen: {}
         UIApplicationSceneManifest:
           UIApplicationSupportsMultipleScenes: false
@@ -38,6 +40,7 @@ targets:
                 UISceneDelegateClassName: $(PRODUCT_MODULE_NAME).SceneDelegate
         UISupportedInterfaceOrientations:
           - UIInterfaceOrientationPortrait
+          - UIInterfaceOrientationPortraitUpsideDown
           - UIInterfaceOrientationLandscapeLeft
           - UIInterfaceOrientationLandscapeRight
         # Plain HTTP only for a server on your own network (192.168.1.130:8099); the tunnel is HTTPS.
@@ -46,7 +49,8 @@ targets:
     settings:
       base:
         PRODUCT_BUNDLE_IDENTIFIER: net.sdf1.ipx
-        MARKETING_VERSION: "0.1.0-dev"
+        MARKETING_VERSION: "0.1.0"
+        DEVELOPMENT_TEAM: 8743L8D729
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
 
   iPXTests: