feat: 青主题产品壳与静态资源版本号

对齐 SPA 顶栏工具条与清青强调色，CSS/JS 带构建 ?v= 长缓存穿透。

Co-authored-by: Cursor <cursoragent@cursor.com>

Makefile

@@ -5,7 +5,7 @@ APP_NAME    := jiang13
 MAIN_PKG    := ./cmd/jiang13
 BUILD_DIR   := dist
 DEV_DATA_DIR := dist/data
-VERSION     := 1.0.0
+VERSION     := $(shell git rev-parse --short HEAD 2>/dev/null | sed 's/^/1.0.0+/' || echo 1.0.0)
 LDFLAGS     := -s -w -X main.version=$(VERSION)
 REGISTRY_IMAGE := hangzhang714128/jiang13-forum