Function LoadAppStatsLocalOnly

src/common/stats_store.cpp:1166–1188

No network; safe under g_mutex. Returns true if local data existed.

// No network; safe under g_mutex. Returns true if local data existed.
static bool LoadAppStatsLocalOnly(uint32_t appId, AppStats& out) {
    if (g_diskAccountId == 0) return false;   // no account yet; skip disk I/O
    std::string path = StatsPath(appId);
    bool haveLocal = false;

    std::ifstream f(path);
    if (f.good()) {
        std::string local((std::istreambuf_iterator<char>(f)),
                          std::istreambuf_iterator<char>());
        f.close();
        if (!local.empty() && ParseAppStatsJson(local, out))
            haveLocal = true;
    }
    if (haveLocal) {
        std::string schemaPath = SchemaPath(appId);
        std::ifstream sf(schemaPath, std::ios::binary);
        if (sf.good()) {
            out.schema.assign(std::istreambuf_iterator<char>(sf),
                              std::istreambuf_iterator<char>());
        }
    }
    return haveLocal;
}

// Merge cached cloud blob for one app. Caller holds g_mutex.
static bool MergeCloudBlobLocked(uint32_t appId, AppStats& out, bool haveLocal) {