config: add OpenCode subagent definitions for TS/JVM development

Add 13 specialized subagent configurations covering architecture, code review, build resolution, documentation, refactoring, TDD, planning, E2E testing, and security for both TypeScript and JVM ecosystems.

home/dot_config/opencode/opencode.jsonc.tmpl

@@ -7,30 +7,35 @@
     // "file:///home/xevion/projects/opencode-anthropic-websearch/dist/index.js",
     "opencode-anthropic-auth",
   ],
+  "agent": {
+    "explore": {
+      "model": "anthropic/claude-haiku-4-5",
+    },
+  },
   "keybinds": {
-    "model_cycle_favorite": "ctrl+f"
+    "model_cycle_favorite": "ctrl+f",
   },
   "lsp": {
     "jdtls": {
-      "disabled": true
-    }
+      "disabled": true,
+    },
   },
   "mcp": {
     "context7": {
       "type": "remote",
       "url": "https://mcp.context7.com/mcp",
       "headers": {
-        "CONTEXT7_API_KEY": "{{ dopplerProjectJson.CONTEXT7_API_KEY }}"
-      }
+        "CONTEXT7_API_KEY": "{{ dopplerProjectJson.CONTEXT7_API_KEY }}",
+      },
     },
     "gh_grep": {
       "type": "remote",
-      "url": "https://mcp.grep.app"
+      "url": "https://mcp.grep.app",
     },
     "linear": {
       "type": "remote",
       "url": "https://mcp.linear.app/mcp",
-      "oauth": {}
-    }
-  }
+      "oauth": {},
+    },
+  },
 }