fix: 修复供应商默认端点 URL 并新增 Coding Plan 配置

- anthropic: 去掉多余的 /v1（Anthropic 原生 API 不带版本路径）
- deepseek: 去掉 /v1（官方推荐不带版本后缀）
- minimax: 域名从 minimax.io 改为 minimaxi.com（国内正式域名）
- 新增 compute/coding-plans/ 目录（8 个 Coding Plan 供应商配置）
- manifest presetDataVersion 9 → 10

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

compute/coding-plans/moorethread-coding.json

@@ -0,0 +1,31 @@
+{
+  "id": "provider-moorethread-coding-001",
+  "provider": "moorethread",
+  "brandGroup": "moorethread",
+  "label": "摩尔线程 Coding Plan",
+  "baseUrl": "https://api.mthreads.com/v1",
+  "apiFormat": "openai-completions",
+  "apiKeyRef": "",
+  "apiKeyVerified": false,
+  "enabled": false,
+  "status": "unconfigured",
+  "accessMode": "coding-plan",
+  "services": ["chat"],
+  "codingPlan": {
+    "quotas": {},
+    "usageTracking": {
+      "method": "none",
+      "consoleUrl": "https://www.mthreads.com/console"
+    }
+  },
+  "models": [
+    {
+      "modelName": "mt-coder",
+      "displayName": "MT Coder (Coding)",
+      "serviceType": ["chat"],
+      "description": "摩尔线程 Coding Plan，国产 GPU 推理",
+      "capabilities": ["chat", "code"],
+      "source": "preset"
+    }
+  ]
+}