refactor(swipe): split swipe screen modules

Move swipe screen logic into hooks/services and extract
state-specific UI components to keep files small while
preserving existing behavior.

Reference: US-002

.codex/skills/dev-browser/src/snapshot/inject.ts

@@ -0,0 +1,13 @@
+/**
+ * Injectable snapshot script for browser context.
+ *
+ * This module provides the getSnapshotScript function that returns a
+ * self-contained JavaScript string for injection into browser contexts.
+ *
+ * The script is injected via page.evaluate() and exposes:
+ * - window.__devBrowser_getAISnapshot(): Returns ARIA snapshot YAML
+ * - window.__devBrowser_selectSnapshotRef(ref): Returns element for given ref
+ * - window.__devBrowserRefs: Map of ref -> Element (persists across connections)
+ */
+
+export { getSnapshotScript, clearSnapshotScriptCache } from "./browser-script";