v0.10.0: ITD 511 official API adapter (events + advisories + cameras) (#85)

First official-state-DOT-API pattern landing. Two adapters in one PR:

- itd_511 (event-class): polls Events (60s) + Advisories (300s) from
  https://511.idaho.gov/api/v2/get/{event,alerts}. Decodes EncodedPolyline
  to LineString via the polyline lib (bookend LineString or Point fallback);
  ITD Severity string mapped None->1 / Minor->2 / Major->3 with
  IsFullClosure=true forcing 3 regardless; RecurrenceSchedules /
  Restrictions / DetourPolyline pass through unmodified. Advisories ship
  as structural pass-through under data.advisory since the upstream
  /alerts endpoint currently returns []; per-record try/except keeps a
  surprise shape from sinking the cycle when ITD posts its first one.

- itd_511_cameras (telemetry-class): polls Cameras (600s). One event per
  camera per UTC day; image URL passes straight through to <img src>.
  Region uniform US-ID with data.source_jurisdiction preserving the raw
  upstream Source field for the ~1.2% cross-DOT border-region mirrors
  (UDOT / ODOT / WYDOT / WSDOT / NDot / MTD / DriveBC / Lemhi County).

Subject convention (v0.9.20 forward): central.traffic.<event_type>.us.id
and central.traffic_cameras.us.id.<camera_id>. Castle Rock state_511_atis
keeps its bare-state subject; consumers stay on central.traffic.>
wildcards during the A/B comparison window.

Retry predicate tightened from the Castle Rock / TomTom precedent: 5xx +
connection / timeout retry; 4xx other than 429 skip-with-warn (don't
burn quota on permanent errors); 429 honors Retry-After once then
retries. API key (alias 'idaho_511') travels in the ?key= query string,
so every error log path runs through self._redact() to scrub the URL.

Both adapters ship disabled; operator enables via GUI after registering
the API key with 'python -m set_api_key idaho_511'. Reuses existing
CENTRAL_TRAFFIC and CENTRAL_TRAFFIC_CAMERAS streams -- no archive
restart needed.

Scope-cap exception: this PR is ~1.5k lines vs. the standard 500-line
cap, authorized as a one-time exception for the first
official-state-DOT-API pattern landing. Two adapters + their tests +
real-API fixtures naturally exceed the v0.9.x adapter-cap budget.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

uv.lock

@@ -185,6 +185,7 @@ dependencies = [
     { name = "jinja2" },
     { name = "mapbox-vector-tile" },
     { name = "nats-py" },
+    { name = "polyline" },
     { name = "pydantic" },
     { name = "pydantic-settings" },
     { name = "python-multipart" },
@@ -214,6 +215,7 @@ requires-dist = [
     { name = "jinja2", specifier = ">=3.1.6" },
     { name = "mapbox-vector-tile", specifier = ">=2.0" },
     { name = "nats-py", specifier = ">=2.14.0" },
+    { name = "polyline", specifier = ">=2.0,<3" },
     { name = "pydantic", specifier = ">=2,<3" },
     { name = "pydantic-settings", specifier = ">=2.7.0" },
     { name = "python-multipart", specifier = ">=0.0.20" },
@@ -648,6 +650,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/54/20/4d324d65cc6d9205fabedc306948156824eb9f0ee1633355a8f7ec5c66bf/pluggy-1.6.0-py3-none-any.whl", hash = "sha256:e920276dd6813095e9377c0bc5566d94c932c33b27a3e3945d8389c374dd4746", size = 20538, upload-time = "2025-05-15T12:30:06.134Z" },
 ]
 
+[[package]]
+name = "polyline"
+version = "2.0.4"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/2c/c1/1a6ee4f9f02a55b2a9241bbadd342970160f7e42423307f21ee8f5530d4e/polyline-2.0.4.tar.gz", hash = "sha256:f05ade694522bf1720febebe1672f820f43a13c6a1664751e7769d47e8ca9b1b", size = 8261, upload-time = "2025-12-02T17:55:22.735Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/34/a8/4ebd3cb31d380e018efb1c8bf92664b196a41aba19506015b682af2587b9/polyline-2.0.4-py3-none-any.whl", hash = "sha256:a4e0c15b8ecb32915559f8cf210f1f8c2f5cc53d3cd32c91d7c1668d6e936e10", size = 7167, upload-time = "2025-12-02T17:55:20.323Z" },
+]
+
 [[package]]
 name = "propcache"
 version = "0.5.2"