UPDATE looking glass docs to mention deeplinks

Signed-off-by: ParleSec <mason@masonparle.com>

Author: ParleSec

docs/starlight/src/content/docs/using/looking-glass.mdx

@@ -31,6 +31,25 @@ Each flow execution produces a timeline of events:
 
 Every event includes an annotation with RFC references (for example "RFC 6749 Section 4.1") and security context explaining what the step does and why.
 
+## Deep-Links and URL State
+
+Looking Glass supports shareable deep-links in the format `/looking-glass?protocol=X&flow=Y`. These links are generated by the palette search (cmd+K) and the **Share** button in the flow toolbar.
+
+URL query parameters follow a consume-and-clear lifecycle:
+
+- When a deep-link is opened, the `?protocol=` and `?flow=` params are read and applied, then removed from the address bar.
+- Changing protocol or flow via the UI dropdowns updates the URL to reflect the new selection.
+- Resetting or clearing the flow strips query params entirely.
+- Navigating away from Looking Glass always results in a clean URL on return.
+
+When a flow is selected, three icon buttons appear next to the protocol/flow dropdowns:
+
+| Control | What It Does |
+|---------|-------------|
+| **Reset** | Resets the current flow execution to its initial state and clears the URL |
+| **Share** | Copies a shareable deep-link for the current protocol and flow to the clipboard |
+| **Clear** | Clears all selections (protocol, flow, tokens, configuration), resets every input field, and strips query params from the URL |
+
 ## Session Management
 
 Each flow execution creates a Looking Glass session. Sessions are linked to backend processing via: