fix(config): move ARM64 db engine constraint into setParam and fix double shutdown

- Rename validateConfig to applyPlatformConstraints, move into
  setParam() after applyCLIParams so RocksDB init is not skipped
- Remove external validateConfig call from FullNode.main
- Fix BaseMethodTest double shutdown by letting context.close()
  handle appT.shutdown() via TronApplicationContext

Author: vividctrlalt

framework/src/main/java/org/tron/core/config/args/Args.java

@@ -130,15 +130,19 @@ public static void setParam(final String[] args, final String confFileName) {
     // 3. CLI overrides Config (highest priority)
     applyCLIParams(cmd, jc);
 
-    // 4. Init witness (depends on CLI witness flag)
+    // 4. Apply platform constraints (e.g. ARM64 forces RocksDB)
+    applyPlatformConstraints();
+
+    // 5. Init witness (depends on CLI witness flag)
     initLocalWitnesses(config, cmd);
   }
 
   /**
-   * Validate final configuration after all sources (defaults, config, CLI) are applied.
-   * ARM64 only supports RocksDB; db.engine config is ignored with a warning.
+   * Apply platform-specific constraints after all config sources are resolved.
+   * ARM64 does not support LevelDB (native JNI library unavailable),
+   * so db.engine is forced to RocksDB regardless of config or CLI settings.
    */
-  public static void validateConfig() {
+  private static void applyPlatformConstraints() {
     if (Arch.isArm64()
         && !Constant.ROCKSDB.equalsIgnoreCase(PARAMETER.storage.getDbEngine())) {
       logger.warn("ARM64 only supports RocksDB, ignoring db.engine='{}'",

framework/src/main/java/org/tron/program/FullNode.java

@@ -24,7 +24,6 @@ public static void main(String[] args) {
     ExitManager.initExceptionHandler();
     checkJdkVersion();
     Args.setParam(args, "config.conf");
-    Args.validateConfig();
     CommonParameter parameter = Args.getInstance();
 
     LogService.load(parameter.getLogbackPath());

framework/src/test/java/org/tron/common/BaseMethodTest.java

@@ -78,11 +78,8 @@ protected void afterInit() {
   @After
   public final void destroyContext() {
     beforeDestroy();
-    if (appT != null) {
-      appT.shutdown();
-    }
     if (context != null) {
-      context.close();
+      context.close(); // triggers appT.shutdown() via TronApplicationContext
     }
     Args.clearParam();
   }