LCORE-1569,LCORE-1570: extend dump-configuration fixtures with new fields

The five tests in test_dump_configuration.py compare
Configuration.model_dump() output against hard-coded expected
dictionaries. Adding `context_windows` to InferenceConfiguration
(LCORE-1569) and `compaction` to the root Configuration
(LCORE-1570) shifts the dump shape, so the expected fixtures need
matching entries.

Update every dump-test expected dict to include:

* `inference.context_windows: {}` — the empty-by-default per-model
  context-window registry.
* `compaction: { enabled: False, threshold_ratio: 0.7,
  token_floor: 4096, buffer_turns: 4, buffer_max_ratio: 0.3 }` —
  the defaults baked into the root Configuration's default_factory.

Fixture-only change. No production-code change. Caught by running
the full unit-test suite (`uv run pytest tests/unit/`) — the per-file
test runs I did originally only covered the new tests, which missed
this snapshot-shape coupling.

Author: max-svistunov

tests/unit/models/config/test_dump_configuration.py

@@ -168,6 +168,7 @@ def test_dump_configuration(tmp_path: Path) -> None:
             "inference": {
                 "default_provider": "default_provider",
                 "default_model": "default_model",
+                "context_windows": {},
             },
             "database": {
                 "sqlite": None,
@@ -190,6 +191,13 @@ def test_dump_configuration(tmp_path: Path) -> None:
                 "sqlite": None,
                 "type": None,
             },
+            "compaction": {
+                "enabled": False,
+                "threshold_ratio": 0.7,
+                "token_floor": 4096,
+                "buffer_turns": 4,
+                "buffer_max_ratio": 0.3,
+            },
             "byok_rag": [],
             "quota_handlers": {
                 "sqlite": None,
@@ -511,6 +519,7 @@ def test_dump_configuration_with_quota_limiters(tmp_path: Path) -> None:
             "inference": {
                 "default_provider": "default_provider",
                 "default_model": "default_model",
+                "context_windows": {},
             },
             "database": {
                 "sqlite": None,
@@ -533,6 +542,13 @@ def test_dump_configuration_with_quota_limiters(tmp_path: Path) -> None:
                 "sqlite": None,
                 "type": None,
             },
+            "compaction": {
+                "enabled": False,
+                "threshold_ratio": 0.7,
+                "token_floor": 4096,
+                "buffer_turns": 4,
+                "buffer_max_ratio": 0.3,
+            },
             "byok_rag": [],
             "quota_handlers": {
                 "sqlite": None,
@@ -746,6 +762,7 @@ def test_dump_configuration_with_quota_limiters_different_values(
             "inference": {
                 "default_provider": "default_provider",
                 "default_model": "default_model",
+                "context_windows": {},
             },
             "database": {
                 "sqlite": None,
@@ -768,6 +785,13 @@ def test_dump_configuration_with_quota_limiters_different_values(
                 "sqlite": None,
                 "type": None,
             },
+            "compaction": {
+                "enabled": False,
+                "threshold_ratio": 0.7,
+                "token_floor": 4096,
+                "buffer_turns": 4,
+                "buffer_max_ratio": 0.3,
+            },
             "byok_rag": [],
             "quota_handlers": {
                 "sqlite": None,
@@ -961,6 +985,7 @@ def test_dump_configuration_byok(tmp_path: Path) -> None:
             "inference": {
                 "default_provider": "default_provider",
                 "default_model": "default_model",
+                "context_windows": {},
             },
             "database": {
                 "sqlite": None,
@@ -983,6 +1008,13 @@ def test_dump_configuration_byok(tmp_path: Path) -> None:
                 "sqlite": None,
                 "type": None,
             },
+            "compaction": {
+                "enabled": False,
+                "threshold_ratio": 0.7,
+                "token_floor": 4096,
+                "buffer_turns": 4,
+                "buffer_max_ratio": 0.3,
+            },
             "byok_rag": [
                 {
                     "db_path": "tests/configuration/rag.txt",
@@ -1166,6 +1198,7 @@ def test_dump_configuration_pg_namespace(tmp_path: Path) -> None:
             "inference": {
                 "default_provider": "default_provider",
                 "default_model": "default_model",
+                "context_windows": {},
             },
             "database": {
                 "sqlite": None,
@@ -1188,6 +1221,13 @@ def test_dump_configuration_pg_namespace(tmp_path: Path) -> None:
                 "sqlite": None,
                 "type": None,
             },
+            "compaction": {
+                "enabled": False,
+                "threshold_ratio": 0.7,
+                "token_floor": 4096,
+                "buffer_turns": 4,
+                "buffer_max_ratio": 0.3,
+            },
             "byok_rag": [],
             "quota_handlers": {
                 "sqlite": None,