Initial commit: a Copper-style panel for prompts and photos

Keeps text prompts and photos in a floating always-on-top panel and
copies them back to the clipboard on click. Double-Shift captures the
selection from any app; sections, search, copy-as-list, merge, and
local JSON persistence mirror shadcn's Copper workflow.

💘 Generated with Crush

Assisted-by: Crush:kimi-k3

Package.swift

@@ -0,0 +1,13 @@
+// swift-tools-version: 5.9
+import PackageDescription
+
+let package = Package(
+    name: "Prompt",
+    platforms: [.macOS(.v14)],
+    targets: [
+        .executableTarget(
+            name: "Prompt",
+            path: "Sources/Prompt"
+        )
+    ]
+)