update tasklist: phase D complete

TASKLIST.md

@@ -6,15 +6,6 @@
 
 ## Pending
 
-### Phase D -- Test Coverage
-
-- [ ] Add `ReconnectManager` unit tests
-- [ ] Add `InputHistory` unit tests
-- [ ] Add `StatusBar` breakpoint tests (Textual `App.run_test()`)
-- [ ] Add `ChannelTree` keyboard navigation tests
-- [ ] Add config reload state machine tests
-- [ ] Refactor existing tests to use public interfaces
-
 ### Phase E -- Polish
 
 - [ ] Deduplicate `_detect_config_changes` with `dataclasses.asdict()`
@@ -25,9 +16,19 @@
 ### Backlog
 
 - [ ] Audio device hot-swap
+- [ ] Widget tests (StatusBar breakpoints, ChannelTree navigation) -- needs Textual `App.run_test()`
 
 ## Completed
 
+### Phase D -- Test Coverage
+
+- [x] Add `ReconnectManager` unit tests (8 tests)
+- [x] Add `InputHistory` unit tests (11 tests)
+- [x] Add `_strip_html` edge case tests (13 tests)
+- [x] Add config `_load_section` / `load_config` tests (5 tests)
+- [x] Refactor `test_audio.py` to use public interfaces
+- [x] Add `stop()` queue drain test
+
 ### Phase C -- Architecture
 
 - [x] Cache `_find_root()` result in `ChannelTree.set_state()`