Initial commit: Velum Raycast extension

Pseudonymize-and-AI workflow for handling PII-sensitive text via the
Velum API and Raycast AI. Commands cover end-to-end email summary and
reply, briefing/action-items/structured-data extraction, manual
pseudonymize/depseudonymize on selection or clipboard, and session
management. Includes Raycast 2.0 Beta workarounds for selection capture
and rich-text clipboard.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/depseudonymize-clipboard.ts

@@ -0,0 +1,7 @@
+import { Clipboard } from "@raycast/api";
+import { depseudonymizeQuickText } from "./quick";
+
+export default async function Command() {
+  const clipboardText = await Clipboard.readText();
+  await depseudonymizeQuickText(clipboardText ?? "", "Zwischenablage");
+}