Prompt gallery (#957)

- [x] show prompt instead of app in autocomplete
- [x] use proper array/list for db (tags)
- [x] don't do <dyad-prompt> - replace inline

src/ipc/utils/replacePromptReference.ts

@@ -0,0 +1,16 @@
+export function replacePromptReference(
+  userPrompt: string,
+  promptsById: Record<number | string, string>,
+): string {
+  if (typeof userPrompt !== "string" || userPrompt.length === 0)
+    return userPrompt;
+
+  return userPrompt.replace(
+    /@prompt:(\d+)/g,
+    (_match: string, idStr: string) => {
+      const idNum = Number(idStr);
+      const replacement = promptsById[idNum] ?? promptsById[idStr];
+      return replacement !== undefined ? replacement : _match;
+    },
+  );
+}