Fix runtime initialization for missing StaticDir and VolumePath

This commit fixes two issues in runtime initialization that occur when
vendor code doesn't properly set StaticDir and VolumePath defaults:

1. Add defensive initialization for StaticDir and VolumePath
   - Check if StaticDir is empty and set it to GraphRoot/libpod
   - Check if VolumePath is empty and set it to GraphRoot/volumes
   - This works around missing initialization in older vendor code
     without requiring changes to the vendor directory

2. Fix database initialization to allow creating new bolt_state.db
   - Previously, getDBState() would fail if bolt_state.db didn't exist
   - Now, only return error if it's not os.ErrNotExist
   - This allows NewBoltState() to create the database on first run

These changes resolve the "creating runtime static files directory:
mkdir : no such file or directory" error that occurred when running
podman commands.

Tested with:
- podman ps, info, version commands work correctly
- Volume operations create volumes at correct path
- Database is properly initialized on first run

Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>

libpod/runtime.go

@@ -319,10 +319,14 @@ func getDBState(runtime *Runtime) (State, error) {
 	case config.DBBackendDefault:
 		// for backwards compatibility check if boltdb exists, if it does not we use sqlite
 		if _, err := os.Stat(boltDBPath); err != nil {
-			// Return error here some other problem with the boltdb file, rather than silently
-			// switch to sqlite which would be hard to debug for the user return the error back
-			// as this likely a real bug.
-			return nil, err
+			// Only return error if it's not a "file not found" error.
+			// If the file doesn't exist, we'll create it with NewBoltState.
+			if !errors.Is(err, os.ErrNotExist) {
+				// Return error here some other problem with the boltdb file, rather than silently
+				// switch to sqlite which would be hard to debug for the user return the error back
+				// as this likely a real bug.
+				return nil, err
+			}
 		}
 		runtime.config.Engine.DBBackend = config.DBBackendBoltDB.String()
 		fallthrough
@@ -352,6 +356,14 @@ func makeRuntime(runtime *Runtime) (retErr error) {
 		return fmt.Errorf("cannot perform system reset while renumbering locks: %w", define.ErrInvalidArg)
 	}
 
+	// Ensure StaticDir and VolumePath are set (defensive check for older vendor code)
+	if runtime.config.Engine.StaticDir == "" {
+		runtime.config.Engine.StaticDir = filepath.Join(runtime.storageConfig.GraphRoot, "libpod")
+	}
+	if runtime.config.Engine.VolumePath == "" {
+		runtime.config.Engine.VolumePath = filepath.Join(runtime.storageConfig.GraphRoot, "volumes")
+	}
+
 	// Make the static files directory if it does not exist
 	if err := os.MkdirAll(runtime.config.Engine.StaticDir, 0700); err != nil {
 		// The directory is allowed to exist