构建初始UI界面

.opencode/command/build.md

@@ -1,14 +1,19 @@
 ---
 description: Build the STM32F4-Base Keil MDK project. Use ONLY when the user asks to build, compile, or verify the project.
+agent: build
 ---
 
-Run the Keil MDK-ARM build from the project root:
+Run the Keil MDK-ARM build by executing the build script with the bash tool. Use the absolute path, NOT relative cd:
 
-```
-cmd /c "cd /d "D:\Code\DTU 程序\STM32F4-Base\MDK-ARM" && build.bat"
+```powershell
+& "D:\Code\DTU 程序\STM32F4-Base\MDK-ARM\build.bat"
 ```
 
-Check the last 10 lines of `MDK-ARM/build_log.txt` for errors/warnings.
-Return code 0 = success (0 errors, 0 warnings).
-Return code 1 = warnings-only (also failure per project rules).
-Return code 2+ = compile errors.
+Then read the tail of `MDK-ARM/build_log.txt` and report the result.
+
+Exit code interpretation (per AGENTS.md):
+- 0 = success (0 errors, 0 warnings) — PASS
+- 1 = warnings only — FAIL, must fix
+- 2+ = compile errors — FAIL, must fix
+
+If the build fails, read `MDK-ARM/build_log.txt`, fix the reported errors/warnings, and rerun `@build` until it returns 0.