Add gallery core and command: routes, sidebar, search, code panel, browser hook

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

cmd/gallery/hook_js.go

@@ -0,0 +1,30 @@
+//go:build js && wasm
+
+package main
+
+import (
+	"syscall/js"
+
+	"git.zacharyzhang.com/ZacharyZhang-NY/CrychicUI/gallery"
+	"git.zacharyzhang.com/ZacharyZhang-NY/CrychicUI/sound"
+)
+
+// hook exports window.__crychic for Playwright.
+func hook(app *gallery.App) {
+	obj := js.Global().Get("Object").New()
+	js.Global().Get("Object").Call("defineProperty", obj, "ready", map[string]any{
+		"get": js.FuncOf(func(js.Value, []js.Value) any { return app.Snapshot().Built }),
+	})
+	obj.Set("page", js.FuncOf(func(js.Value, []js.Value) any { return app.Snapshot().Page }))
+	obj.Set("stats", js.FuncOf(func(js.Value, []js.Value) any {
+		return map[string]any{"components": len(gallery.Entries()), "categories": len(gallery.Categories)}
+	}))
+	obj.Set("recent", js.FuncOf(func(js.Value, []js.Value) any {
+		var out []any
+		for _, c := range sound.Recent() {
+			out = append(out, c.String())
+		}
+		return out
+	}))
+	js.Global().Set("__crychic", obj)
+}