feat(viewer): add GM Ops Console window replacing ops strip

Introduces a floating, draggable, resizable Game Master console as the
first of a planned series of GM/debug windows. Replaces the horizontal
ops-strip card layout with proper data tables using TanStack Table v8.

- GmWindow.vue: reusable draggable+resizable floating window base;
  snapshots offsetWidth/Height on drag start so resize is preserved
- GmOpsWindow.vue: Ships / Stations / Factions tabs with global filter,
  column sorting, and drag-to-reorder columns (useColumnOrder composable)
- gmStore.ts: Pinia store fed from ViewerWorldLifecycle.rebuildFactions
  with raw world arrays (ships, stations, factions)
- Removes opsStripEl binding (was stored but never read by controller)
- GM Console toggle button replaces the bottom ops strip

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/viewer/package-lock.json

@@ -8,6 +8,7 @@
       "name": "space-game-viewer",
       "version": "0.1.0",
       "dependencies": {
+        "@tanstack/vue-table": "^8.21.3",
         "pinia": "^3.0.3",
         "three": "^0.179.1",
         "vue": "^3.5.21"
@@ -1118,6 +1119,36 @@
         "vite": "^5.2.0 || ^6 || ^7 || ^8"
       }
     },
+    "node_modules/@tanstack/table-core": {
+      "version": "8.21.3",
+      "resolved": "https://registry.npmjs.org/@tanstack/table-core/-/table-core-8.21.3.tgz",
+      "integrity": "sha512-ldZXEhOBb8Is7xLs01fR3YEc3DERiz5silj8tnGkFZytt1abEvl/GhUmCE0PMLaMPTa3Jk4HbKmRlHmu+gCftg==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
+    "node_modules/@tanstack/vue-table": {
+      "version": "8.21.3",
+      "resolved": "https://registry.npmjs.org/@tanstack/vue-table/-/vue-table-8.21.3.tgz",
+      "integrity": "sha512-rusRyd77c5tDPloPskctMyPLFEQUeBzxdQ+2Eow4F7gDPlPOB1UnnhzfpdvqZ8ZyX2rRNGmqNnQWm87OI2OQPw==",
+      "dependencies": {
+        "@tanstack/table-core": "8.21.3"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "vue": ">=3.2"
+      }
+    },
     "node_modules/@tweenjs/tween.js": {
       "version": "23.1.3",
       "resolved": "https://registry.npmjs.org/@tweenjs/tween.js/-/tween.js-23.1.3.tgz",