- Add ExpectedDB field to RPC Request - Server validates client's expected DB matches daemon's DB - Return clear error on mismatch with both paths - Old clients (no ExpectedDB) still work with warning - Add Path() method to storage.Storage interface - Tests verify cross-database connections rejected Prevents database pollution when client connects to wrong daemon. Amp-Thread-ID: https://ampcode.com/threads/T-c4454192-39c6-4c67-96a9-675cbfc4db92 Co-authored-by: Amp <amp@ampcode.com>