Better env var/config knob exposure

app/routers/debug.py

@@ -64,7 +64,6 @@ class DebugRuntimeInfo(BaseModel):
     path_hash_mode_supported: bool
     channel_slot_reuse_enabled: bool
     channel_send_cache_capacity: int
-    remediation_flags: dict[str, bool]
 
 
 class DebugContactAudit(BaseModel):
@@ -110,6 +109,21 @@ class DebugHealthSummary(BaseModel):
     basic_auth_enabled: bool = False
 
 
+class DebugEnvironment(BaseModel):
+    connection_type: str
+    serial_port: str
+    serial_baudrate: int
+    tcp_host: str
+    tcp_port: int
+    ble_address: str
+    log_level: str
+    database_path: str
+    disable_bots: bool
+    enable_message_poll_fallback: bool
+    force_channel_slot_reconfigure: bool
+    load_with_autoevict: bool
+
+
 class DebugAppSettings(BaseModel):
     max_radio_contacts: int
     auto_decrypt_dm_on_advert: bool
@@ -123,6 +137,7 @@ class DebugSnapshotResponse(BaseModel):
     captured_at: str
     system: DebugSystemInfo
     application: DebugApplicationInfo
+    environment: DebugEnvironment
     health: DebugHealthSummary
     settings: DebugAppSettings
     runtime: DebugRuntimeInfo
@@ -203,6 +218,23 @@ def _coerce_live_max_channels(device_info: dict[str, Any] | None) -> int | None:
         return None
 
 
+def _build_environment() -> DebugEnvironment:
+    return DebugEnvironment(
+        connection_type=settings.connection_type,
+        serial_port=settings.serial_port,
+        serial_baudrate=settings.serial_baudrate,
+        tcp_host=settings.tcp_host,
+        tcp_port=settings.tcp_port,
+        ble_address=settings.ble_address,
+        log_level=settings.log_level,
+        database_path=settings.database_path,
+        disable_bots=settings.disable_bots,
+        enable_message_poll_fallback=settings.enable_message_poll_fallback,
+        force_channel_slot_reconfigure=settings.force_channel_slot_reconfigure,
+        load_with_autoevict=settings.load_with_autoevict,
+    )
+
+
 def _build_debug_app_settings(app_settings: AppSettings) -> DebugAppSettings:
     return DebugAppSettings(
         max_radio_contacts=app_settings.max_radio_contacts,
@@ -393,6 +425,7 @@ async def debug_support_snapshot() -> DebugSnapshotResponse:
         captured_at=datetime.now(UTC).isoformat(),
         system=_build_system_info(),
         application=_build_application_info(),
+        environment=_build_environment(),
         health=_build_debug_health_summary(health_data, radio_state=radio_state),
         settings=_build_debug_app_settings(app_settings),
         runtime=DebugRuntimeInfo(
@@ -404,10 +437,6 @@ async def debug_support_snapshot() -> DebugSnapshotResponse:
             path_hash_mode_supported=radio_runtime.path_hash_mode_supported,
             channel_slot_reuse_enabled=radio_runtime.channel_slot_reuse_enabled(),
             channel_send_cache_capacity=radio_runtime.get_channel_send_cache_capacity(),
-            remediation_flags={
-                "enable_message_poll_fallback": settings.enable_message_poll_fallback,
-                "force_channel_slot_reconfigure": settings.force_channel_slot_reconfigure,
-            },
         ),
         database=DebugDatabaseInfo(
             total_dms=message_totals["total_dms"],

tests/test_api.py

@@ -203,6 +203,30 @@ class TestHealthEndpoint:
 class TestDebugEndpoint:
     """Test the debug support snapshot endpoint."""
 
+    def test_build_environment_exposes_env_settings(self):
+        """_build_environment should expose env config without secrets."""
+        from app.config import Settings
+        from app.routers.debug import _build_environment
+
+        with patch(
+            "app.routers.debug.settings",
+            Settings(
+                serial_port="/dev/ttyUSB0",
+                serial_baudrate=115200,
+                log_level="DEBUG",
+                database_path="data/test.db",
+            ),
+        ):
+            env = _build_environment()
+
+        assert env.connection_type == "serial"
+        assert env.serial_port == "/dev/ttyUSB0"
+        assert env.log_level == "DEBUG"
+        assert env.database_path == "data/test.db"
+        assert not hasattr(env, "ble_pin")
+        assert not hasattr(env, "basic_auth_password")
+        assert not hasattr(env, "basic_auth_username")
+
     def test_support_snapshot_sanitizes_radio_probe_location_fields(self):
         """Debug radio probe should redact advertised lat/lon from self_info."""
         from app.routers.debug import _sanitize_radio_probe_self_info
@@ -300,6 +324,8 @@ class TestDebugEndpoint:
         assert "multi_acks_enabled" not in payload["radio_probe"]
         assert "max_channels" not in payload["runtime"]
         assert "path_hash_mode" not in payload["runtime"]
+        assert "environment" in payload
+        assert payload["environment"]["connection_type"] in ("serial", "tcp", "ble")
         assert payload["runtime"]["channels_with_incoming_messages"] == 0
         assert payload["database"]["total_dms"] == 0
         assert payload["database"]["total_channel_messages"] == 0