refactor: isolate rpc server config composition

AGENTS.md

@@ -1,18 +1,29 @@
 # pitfalls / guide
 
+## extra fields
+
 prefer asserts actual['field'] == expected['field'] over assert actual == expected unless we know better (eg. no extra fields allowed)
 
+## tests
+
 Prefer pytest `tmp_path` for test-local filesystem state. Avoid fixed paths under `local_temp_root()` for tests that create durable files unless the test explicitly cleans or needs cross-process persistence; stale files there can change later test runs.
 
 Now that pytest-asyncio is installed, prefer `async def test_x()`
 instead of `def test_x(): async def scenario(): ...; asyncio.run(scenario())`
 
-more later
+## mgmt
+
+More packages please. we spent a while cleaning flatten packages/modules; putting files of similar interests in folders and sub-folders.
+example: some of tests/ and some packages. (simple example: src/pack/foo_bar.py -> src/pack/foo/bar.py)
+
+Lets just do that from the start this time, ok?
 
 ## Docs mgmt
 
 read docs/AGENTS.md
 
+more later
+
 # Test suite
 
 ```bash