feat: native WireView Pro II monitoring (detection, serial protocol, live tab)

Standalone support for the ThermalGrizzly WireView Pro II without
depending on the external wireview_reporter exporter:

- wireview.py: serial protocol (STX/ETX + 16-bit CRC16-CCITT) with
  vendor-data product identification, config version, UID, build
  string, screen layout, and temperature/power/current sensor reads;
  hwmon fallback with per-channel index resolution; udev-based
  detection (vendor 0x2560 / product 0x0101) with fallback port
  probing; serial read timeout and watchdog reconnect
- server.py: startup detection (root only), 1 Hz poller gated on
  subscribed clients, WS 'wireview' channel, GET /api/wireview,
  rejected-product memoization, stale-read race guard
- frontend: WireView tab (visible when a device is detected) with
  live temperature/power/current cards, sparkline history, and
  device info; nullable temp channels
- tests: 76 tests covering parser, CRC, fault classification,
  hwmon resolution, JSON safety, and the serial transport against
  a pty-based fake device

Verified live: tab appears with the device connected, disappears
when unplugged, reconnects on re-plug, no serial traffic when idle.

uv.lock

@@ -246,6 +246,7 @@ dependencies = [
     { name = "httpx" },
     { name = "nvidia-ml-py" },
     { name = "pydantic" },
+    { name = "pyserial" },
     { name = "uvicorn", extra = ["standard"] },
 ]
 
@@ -261,6 +262,7 @@ requires-dist = [
     { name = "httpx", specifier = ">=0.27" },
     { name = "nvidia-ml-py", specifier = ">=12.0" },
     { name = "pydantic", specifier = ">=2.0" },
+    { name = "pyserial", specifier = ">=3.5" },
     { name = "uvicorn", extras = ["standard"], specifier = ">=0.30" },
 ]
 
@@ -389,6 +391,15 @@ wheels = [
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 ]
 
+[[package]]
+name = "pyserial"
+version = "3.5"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/1e/7d/ae3f0a63f41e4d2f6cb66a5b57197850f919f59e558159a4dd3a818f5082/pyserial-3.5.tar.gz", hash = "sha256:3c77e014170dfffbd816e6ffc205e9842efb10be9f58ec16d3e8675b4925cddb", size = 159125, upload-time = "2020-11-23T03:59:15.045Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/07/bc/587a445451b253b285629263eb51c2d8e9bcea4fc97826266d186f96f558/pyserial-3.5-py2.py3-none-any.whl", hash = "sha256:c4451db6ba391ca6ca299fb3ec7bae67a5c55dde170964c7a14ceefec02f2cf0", size = 90585, upload-time = "2020-11-23T03:59:13.41Z" },
+]
+
 [[package]]
 name = "python-dotenv"
 version = "1.2.2"