chore(eas): use remote app version source with autoIncrement

Switch cli.appVersionSource to remote and enable autoIncrement on all
production profiles so EAS bumps the build number every release instead
of resetting to 1. Remove the dead android.versionCode from app.json and
the unused EAS Update channel (no expo-updates installed).

app.json

@@ -36,7 +36,6 @@
       "appleTeamId": "MWD5K362T8"
     },
     "android": {
-      "versionCode": 94,
       "adaptiveIcon": {
         "foregroundImage": "./assets/images/icon-android-plain.png",
         "monochromeImage": "./assets/images/icon-android-themed.png",

eas.json

@@ -1,6 +1,7 @@
 {
   "cli": {
-    "version": ">= 9.1.0"
+    "version": ">= 9.1.0",
+    "appVersionSource": "remote"
   },
   "build": {
     "development": {
@@ -52,14 +53,14 @@
     },
     "production": {
       "environment": "production",
-      "channel": "0.54.1",
+      "autoIncrement": true,
       "android": {
         "image": "latest"
       }
     },
     "production-apk": {
       "environment": "production",
-      "channel": "0.54.1",
+      "autoIncrement": true,
       "android": {
         "buildType": "apk",
         "image": "latest"
@@ -67,7 +68,7 @@
     },
     "production-apk-tv": {
       "environment": "production",
-      "channel": "0.54.1",
+      "autoIncrement": true,
       "android": {
         "buildType": "apk",
         "image": "latest"
@@ -78,7 +79,7 @@
     },
     "production_tv": {
       "environment": "production",
-      "channel": "0.54.1",
+      "autoIncrement": true,
       "env": {
         "EXPO_TV": "1"
       },