feat(docker): replace logs modal with dedicated xterm page

Address PR review feedback by moving container logs to a full-page viewer
using xterm (matching /manage/tools/logs), with per-row actions for better
UX when browsing long container lists. Harden log streaming with multiplex
decode fallbacks, stream cleanup on parse errors, and decode unit tests.

packages/docker/src/shared.ts

@@ -29,4 +29,5 @@ export const cpuUsageColor = (number: number, state: string): MantineColor => {
   return "red";
 };
 
-export const safeValue = (value?: number, fallback = 0): number => (value !== undefined && !isNaN(value) ? value : fallback);
+export const safeValue = (value?: number, fallback = 0): number =>
+  value !== undefined && !isNaN(value) ? value : fallback;