Desktop: remove hardcoded prod Firebase, use dev config for dev builds

[beastoin]

GoogleService-Info-Dev.plist and AuthService.swift hardcode prod Firebase (based-hardware). Dev builds should use dev Firebase (based-hardware-dev) so local backend testing works with dev credentials.

Current Behavior

• GoogleService-Info-Dev.plist points to based-hardware (prod) — same as prod plist
• AuthService.swift:87 hardcodes prod API key AIzaSyD9dzBdglc7IO9pPDIOvqnCoTis_xKkkC8
• Dev builds authenticate against prod Firebase, making local backend testing with dev credentials impossible

Expected Behavior

Dev builds (./run.sh / Omi Dev.app) use based-hardware-dev Firebase project. Prod builds use based-hardware.

Affected Areas

File	Line	Description
desktop/Desktop/Sources/GoogleService-Info-Dev.plist	12,20,22	API_KEY, PROJECT_ID, STORAGE_BUCKET all prod values
desktop/Desktop/Sources/AuthService.swift	87	Hardcoded firebaseApiKey (prod)

Solution

1. GoogleService-Info-Dev.plist — update to dev values:

   • API_KEY: AIzaSyBK-G7KmEoC72mR10gmQyb2NFBbZyDvcqM
   • PROJECT_ID: based-hardware-dev
   • STORAGE_BUCKET: based-hardware-dev.firebasestorage.app
   • GCM_SENDER_ID: 1031333818730
   • GOOGLE_APP_ID: 1:1031333818730:ios:3bea63d8e4f41dbfafb513

2. AuthService.swift — read API_KEY from the active GoogleService-Info plist at runtime instead of hardcoding. Dev builds load GoogleService-Info-Dev.plist, prod builds load GoogleService-Info.plist.

Files to Modify

• desktop/Desktop/Sources/GoogleService-Info-Dev.plist
• desktop/Desktop/Sources/AuthService.swift

Impact

None on prod — GoogleService-Info.plist (prod) unchanged. Only dev builds affected.

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by AI for @beastoin