build(updates): enable full git history and use semantic version for runtimeVersion

Enable fetch-depth: 0 in checkout steps to support commit counting.
Switch runtimeVersion from buildNumber to appJson.expo.version so that
builds with the same semantic version share OTA update channels,
while versionCode/buildNumber continue using commit count for app store monotonic versioning.

.gitea/workflows/build.yml

@@ -36,6 +36,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Set up Node
         uses: actions/setup-node@v4
@@ -108,6 +110,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Set up Java
         uses: actions/setup-java@v4

app.config.js

@@ -66,9 +66,10 @@ const filteredPlugins = isWeb
 module.exports = {
   ...expo,
   name: isDevVariant ? `${expo.name} Dev` : expo.name,
-  // runtimeVersion 用 build number（commit count + 偏移）：单调递增、纯数字、与 version (语义版本) 解耦
-  // 字符串形式，等价于 policy: 'custom'
-  runtimeVersion: buildNumber,
+  // runtimeVersion 用语义版本（expo.version）：同一版本号的所有 build 共享 OTA 通道，
+  // 改原生代码/配置后应升级 version 来切换通道。
+  // versionCode / buildNumber 仍用 commit count + 偏移，保证应用商店版本号单调递增。
+  runtimeVersion: appJson.expo.version,
   updates: {
     ...(expo.updates || {}),
     url: isDevVariant ? devUpdatesUrl : releaseUpdatesUrl,