feat: add native runtime customization

OpenCode and Continue customization was previously planned but unavailable, and Runtime-native capabilities were not represented consistently across providers. GoodBuddy now provides secure Main-owned customization settings, truthful native inventories, OpenCode Agents and Commands, Continue Rules and Prompts, DSH Web Search/Fetch, MCP Prompt and Resource metadata, and manual compaction where supported.

Native capabilities are presented in eleven accessible tabs with Tools separated from Commands, LSP, and Formatters. Tool source and Ask/Execute availability are explicit, external OpenCode remains connection-only, Continue reports unsupported static tool discovery instead of advertising unreachable Skills, and disposable inventory probes avoid retaining background runtimes.

Ask remains read-only at the Runtime boundary, Execute keeps the existing authorization controls, and credentials remain confined to Main.

Release note: 新增 OpenCode、Continue 与 DeepSeek Harness 的 Runtime 原生定制与真实能力清单；工具来源、Ask/Execute 可用性、上下文压缩和 MCP 元数据现在可清晰查看，同时继续保持 Main 进程凭据保护与现有权限边界。

src/shared/capability-contracts.ts

@@ -354,7 +354,46 @@ export const mcpServerTestResultSchema = z
           })
           .strict()
       )
+      .max(100),
+    promptCount: z.number().int().min(0).max(10_000).optional(),
+    prompts: z
+      .array(
+        z
+          .object({
+            name: z.string().min(1).max(128),
+            description: z.string().max(500).optional(),
+            arguments: z
+              .array(
+                z
+                  .object({
+                    name: z.string().min(1).max(128),
+                    description: z.string().max(500).optional(),
+                    required: z.boolean()
+                  })
+                  .strict()
+              )
+              .max(32)
+          })
+          .strict()
+      )
       .max(100)
+      .optional(),
+    resourceCount: z.number().int().min(0).max(10_000).optional(),
+    resources: z
+      .array(
+        z
+          .object({
+            name: z.string().min(1).max(200),
+            uri: z.string().min(1).max(2_048),
+            description: z.string().max(500).optional(),
+            mimeType: z.string().min(1).max(200).optional()
+          })
+          .strict()
+      )
+      .max(100)
+      .optional(),
+    promptsSupported: z.boolean().optional(),
+    resourcesSupported: z.boolean().optional()
   })
   .strict()
 export type McpServerTestResult = z.infer<