[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).

lw/.pi/agent/models.json

@@ -194,7 +194,7 @@
           "id": "Ornith-1.5-35B-A3B-IQ3_XXS",
           "name": "Ornith 1.5 35B · 24k · vision — agentic coder, thinking (~32 t/s)",
           "reasoning": true,
-          "compat": { "thinkingFormat": "qwen-chat-template" },
+          "compat": { "thinkingFormat": "qwen-chat-template", "thinkingTokenBudgetField": "thinking_budget_tokens" },
           "input": ["text", "image"],
           "contextWindow": 24576,
           "maxTokens": 2048,
@@ -329,7 +329,7 @@
           "id": "Ornith-1.5-35B-A3B-IQ3_XXS",
           "name": "Ornith 1.5 35B · 24k · vision — agentic coder, thinking (~32 t/s)",
           "reasoning": true,
-          "compat": { "thinkingFormat": "qwen-chat-template" },
+          "compat": { "thinkingFormat": "qwen-chat-template", "thinkingTokenBudgetField": "thinking_budget_tokens" },
           "input": ["text", "image"],
           "contextWindow": 24576,
           "maxTokens": 2048,

lw/.pi/agent/settings.json

@@ -2,6 +2,12 @@
   "defaultProvider": "duskadiy",
   "defaultModel": "Qwen3.6-35B-A3B-Thinking",
   "defaultThinkingLevel": "medium",
+  "thinkingBudgets": {
+    "minimal": 256,
+    "low": 512,
+    "medium": 1024,
+    "high": 1024
+  },
   "theme": "catppuccin-mocha",
   "quietStartup": false,
   "collapseChangelog": true,