Move the port inspector onto device pages

Replace the all-switches Inspector page with a per-device front panel,
port table and detail panel. /inspector now redirects to the dashboard,
and /device/<name>#port-<n> links directly to a port.

Restore neighbor names after UniFi's LLDP change: read local_port_idx
and resolve neighbors by MAC using Prometheus NIC data, UniFi devices
and the wired client table. This also brings back Run Diagnostics on
server ports, which depends on a named neighbor.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/demo/capture.py

@@ -88,7 +88,7 @@ async def shots():
         await pg.screenshot(path=f"{OUT}/device-host.png", full_page=True)
         await go(pg, "/device/" + quote("Pro 24 PoE"))
         await pg.screenshot(path=f"{OUT}/device-switch.png", full_page=True)
-        await go(pg, "/inspector")
+        await go(pg, "/device/USW-Aggregation")
         await pg.screenshot(path=f"{OUT}/inspector.png")
         await select_port(pg, "USW-Aggregation", 4)
         await pg.screenshot(path=f"{OUT}/inspector-port.png", full_page=False)
@@ -132,7 +132,7 @@ async def gif():
         await snap(3)
         await pg.mouse.wheel(0, 500)
         await snap(2, 500)
-        await go(pg, "/inspector", 4000)
+        await go(pg, "/device/USW-Aggregation", 4000)
         await snap(2)
         await select_port(pg, "USW-Aggregation", 4)
         await snap(3)