Fix container remove timeouts and make force-remove reliable.

Lifecycle RPCs now use a 120s operation timeout, remove cleans up
stats/terminal/log streams then SIGKILLs before force-remove, and the
UI awaits the request instead of a fragile 30s wait race.

shared/schema.js

@@ -30,6 +30,10 @@ export const MethodSchemas = Object.freeze({
   },
   removeContainer: {
     id: { type: 'string', required: true, maxLen: 128 },
+    force: { type: 'boolean', required: false },
+    v: { type: 'boolean', required: false },
+    removeVolumes: { type: 'boolean', required: false },
+    link: { type: 'boolean', required: false },
   },
   pullImage: {
     image: { type: 'string', required: true, maxLen: 255 },