Track upstream Plaud CLI rename and folder commands

[eranium21]

Feature request: rename and folder organization commands in Plaud CLI

The official Plaud CLI is already useful for listing, inspecting, and importing recordings. One gap for workflow automation is cloud-side organization after external processing.

Typical workflow:

1. Record a meeting with Plaud.
2. Import/transcribe/summarize externally.
3. Produce a meaningful title, e.g. 2026-06-19 Client Sprint Review.
4. Want that title reflected back in Plaud Web so the cloud library remains searchable and usable.

Suggested commands:

plaud rename <recording_id> "2026-06-19 Client Sprint Review"
plaud folders
plaud folder create "Client Calls"
plaud move <recording_id> --folder <folder_id>

Expected behavior:

• Use the CLI's existing authentication/session mechanism.
• Handle Plaud account region routing.
• Support clear errors for missing/invalid IDs.
• Avoid exposing raw tokens or browser session internals to users.

Reference implementation:

https://github.com/eranium21/plaud-web-workflows

That implementation is unofficial and intentionally scoped to account-owned recordings. I am opening this because these workflows would be cleaner and safer if supported directly in the official CLI.