* feat(ssh-launcher): add /ssh launcher for SSH config hosts
Provide a launcher provider that reads ~/.ssh/config, lists host aliases
with fuzzy search, and opens an SSH session in the terminal on activate.
* docs(ssh-launcher): update store thumbnail
Replace the plugin card image with the final SSH Launcher artwork,
blur server IP addresses, and fix the displayed category tags.
* fix(ssh-launcher): parse SSH config directives case-insensitively
Match Host, Hostname, and User keywords regardless of casing so
lowercase blocks are included, consistent with OpenSSH behavior.
