Miscellaneous fixes (0.18 beta) (#23854)

* fix watchdog process restarts reverting to the boot config

/api/config/set parses a new FrigateConfig and swaps the API and dispatcher onto it, but FrigateApp.config was never rebound, so the watchdog factories rebuilt a crashed process from the config as of startup. Fix is to read through a ConfigHolder that the swap updates.

* fix birdseye camera overrides being clobbered by a global mode change

A global birdseye save published only the global object, leaving the output process to infer which cameras were inheriting by comparing against the previous global mode. That cannot tell an inherited value from an explicit one that happens to match, so it overwrote the override until a restart. Publish the per-camera values the config parse already resolved instead.

* Reject non-finite numbers in GenAI review descriptions

A model returning NaN for confidence or potential_threat_level slipped through the model_construct fallback, which skips validation, and was written into the review segment's JSON data. NaN is not valid JSON, so every subsequent /review request failed with "Out of range float values are not JSON compliant", blanking the review page for any time range containing the poisoned row.

* restore fused DetectionOutput in the OpenVINO SSD model conversion

* fix rgb swap issue for face dataset testing script

frigate/app.py

@@ -30,6 +30,7 @@ from frigate.comms.ws import WebSocketClient
 from frigate.comms.zmq_proxy import ZmqProxy
 from frigate.config.camera.updater import CameraConfigUpdatePublisher
 from frigate.config.config import FrigateConfig
+from frigate.config.holder import ConfigHolder
 from frigate.config.profile_manager import ProfileManager
 from frigate.const import (
     CACHE_DIR,
@@ -122,7 +123,18 @@ class FrigateApp:
         self.processes: dict[str, int] = {}
         self.embeddings: EmbeddingsContext | None = None
         self.profile_manager: ProfileManager | None = None
-        self.config = config
+        self.config_holder = ConfigHolder(config)
+
+    @property
+    def config(self) -> FrigateConfig:
+        """The current config, not the one Frigate booted with.
+
+        Read through the holder so the deferred watchdog factories below build
+        a replacement process from the config as it is now. There is no setter
+        on purpose: a plain attribute would let a caller pin this back to a
+        single object and reintroduce the staleness.
+        """
+        return self.config_holder.config
 
     def ensure_dirs(self) -> None:
         dirs = [
@@ -645,6 +657,7 @@ class FrigateApp:
                     self.replay_manager,
                     self.dispatcher,
                     self.profile_manager,
+                    config_holder=self.config_holder,
                 ),
                 host="127.0.0.1",
                 port=5001,