fix: Taskfile 输出文件名自动适配平台后缀（Windows .exe）

Taskfile.yml

@@ -4,13 +4,15 @@ vars:
   APP_NAME: voicepaste
   VERSION:
     sh: git describe --tags --always --dirty 2>/dev/null || echo "dev"
+  EXE:
+    sh: go env GOEXE
 
 tasks:
   default:
     desc: Build for current platform
     deps: [build:frontend]
     cmds:
-      - go build -ldflags "-s -w -X main.version={{.VERSION}}" -o {{.APP_NAME}} .
+      - go build -ldflags "-s -w -X main.version={{.VERSION}}" -o {{.APP_NAME}}{{.EXE}} .
 
   build:frontend:
     desc: Build frontend with Vite
@@ -31,7 +33,7 @@ tasks:
     desc: Build and run
     deps: [default]
     cmds:
-      - ./{{.APP_NAME}}
+      - ./{{.APP_NAME}}{{.EXE}}
 
   dev:
     desc: Run with go run (skip frontend build)
@@ -41,7 +43,7 @@ tasks:
   clean:
     desc: Clean build artifacts
     cmds:
-      - rm -rf dist/ {{.APP_NAME}} web/dist web/node_modules
+      - rm -rf dist/ {{.APP_NAME}}{{.EXE}} web/dist web/node_modules
 
   tidy:
     desc: Tidy Go modules