Update docs and README for voice audio, capture, and the web UI

docs/communication.md

@@ -37,6 +37,7 @@ mention the puppet first.
 | `whitelist list` | Show the owner and the trusted users with their tiers. |
 | `whitelist add @user [user\|trusted\|admin]` | Add one or more users. The default tier is `user`. |
 | `whitelist remove @user` | Remove one or more users from the trust list. |
+| `speak <text>` | Speak text into the bot's current voice call. `speak stop` stops it. |
 | `poll ...` | Start a reaction poll. Paused at this time. |
 | `stay @user` | Planned with the voice backend. Pin the bot to a voice user. See [voice.md](voice.md). |
 
@@ -178,6 +179,9 @@ event. The log rotates at the size limit.
 | `continuation` | Follow-up message ID and the parent entry ID |
 | `command` | Command text, requester, result |
 | `reply` | Command, mode, target, result, error |
+| `voice` | Voice action, channel, mute |
+| `audio` | Audio action (speak, stop, devices, capture), provider, size |
+| `manual` | Web UI send: mode, channel or user, content length |
 | `error` | Scope and message |
 
 Secret-looking strings are redacted before the write. Discord token shapes and `mfa.` strings