[Sync] LLM clients → Qwen3.6-35B-A3B-Thinking default, Ornith preset, fl GPU monitor abbrs

Re-export of private HEAD 73b4a65: default-model flip + 8k thinking budget
in the aichat/opencode/pi client configs, the Ornith-1.5-35B-A3B preset and
its gate bench in fl/.config/llamacpp, and the fl fish abbrs `vram` /
`vramx` with the new gpumon.sh (sysfs VRAM/GTT monitor).

common/.pi/agent/settings.json

@@ -1,7 +1,13 @@
 {
-  "defaultProvider": "duskadiy",
-  "defaultModel": "Qwen3.6-35B-A3B-Thinking",
+  "defaultProvider": "localcpp",
+  "defaultModel": "Ornith-1.5-35B-A3B-IQ3_XXS",
   "defaultThinkingLevel": "medium",
+  "thinkingBudgets": {
+    "minimal": 512,
+    "low": 1024,
+    "medium": 2048,
+    "high": 3072
+  },
   "theme": "catppuccin-mocha",
   "quietStartup": false,
   "collapseChangelog": true,
@@ -58,7 +64,7 @@
       "ex": "mode"
     }
   },
-  "lastChangelogVersion": "0.85.1",
+  "lastChangelogVersion": "1.0.0",
   "packages": [
     "npm:pi-vim"
   ]