Merge master into the OpenCode Go branch

Master grew Google AI Studio and Antigravity as providers, a doctor that
names each provider's own key, and settings that fetch every hosted
model list as the window opens. OpenCode Go is folded into each: its
name joins SERVICES and the doctor's key table, its key row sits beside
Google's, its Fetch button follows the per-provider pattern Google's
uses, and _load_hosted_models fetches its catalog at open when a key is
on file, filling the cleanup and agent boxes alike.

README.md

@@ -115,10 +115,13 @@ or runs it on the spot.
 Speech to text and cleanup each pick a provider in the settings window, and both
 run here by default, on models of your own. The cloud is the other option:
 speech to text on **OpenAI**, **Groq** or **OpenRouter** (`gpt-4o-transcribe`),
-cleanup on OpenRouter (`google/gemini-3.5-flash-lite`), on **OpenCode Go**
-(`deepseek-v4-flash`) or, when either is installed, on Claude Code or Codex.
-The keys fall back to `OPENAI_API_KEY`, `GROQ_API_KEY`, `OPENROUTER_API_KEY`
-and `OPENCODE_API_KEY`, and are stored in
+cleanup on OpenRouter (`google/gemini-3.5-flash-lite`), on **Google AI Studio**
+(`gemini-3.5-flash-lite`), on **OpenCode Go** (`deepseek-v4-flash`) or, when one
+of them is installed, on Claude Code, Codex or Antigravity. The first three are
+a single HTTP request; the three CLIs each open a whole session to do it, which
+is where their few extra seconds go. The keys fall back to `OPENAI_API_KEY`,
+`GROQ_API_KEY`, `OPENROUTER_API_KEY`, `GEMINI_API_KEY` and `OPENCODE_API_KEY`,
+and are stored in
 `~/.config/dikte/config.json`, mode 600, or in
 `~/Library/Application Support/Dikte` on a Mac. Cleanup can be switched off, in
 which case the raw transcript is pasted, and a thinking model's effort can be
@@ -190,12 +193,13 @@ running.
   what comes of it: the answer, or a sentence saying what was done. It is the
   session you would have opened yourself, so your skills and connected services
   are there, which is what makes "put that in my calendar on Thursday at three"
-  a thing you can say to a window that is not Claude. Codex (`codex exec`) runs
-  the same way, and OpenRouter or OpenCode Go is there as a plain
-  question-and-answer fallback for a machine with neither CLI on it. Provider,
-  model, permissions and working
-  directory are under Settings → Agent, and commands close together stay in one
-  conversation.
+  a thing you can say to a window that is not Claude. Codex (`codex exec`) and
+  Antigravity (`agy -p`) run the same way, though Antigravity takes neither a
+  permission mode nor a sandbox from Dikte: what it may do without asking is
+  whatever its own allow-rules say. OpenRouter or OpenCode Go is there as a
+  plain question-and-answer fallback for a machine with no CLI on it. Provider,
+  model, permissions and working directory are under Settings → Agent, and
+  commands close together stay in one conversation.
 - **Meetings** are recorded from the microphone and the speaker output at the
   same time, which settles who said what by the channel a voice arrived on
   instead of guessing at it. The two sides are transcribed separately and
@@ -242,9 +246,9 @@ cli.py            the command line: every verb, and what it answers with
 ipc.py            one request and one reply over the local socket
 audio.py          PCM capture: pw-record for dictation, ffmpeg for a meeting
 meeting.py        channel split, speaker labelling, cleanup, minutes
-assistant.py      running a dictation through Claude Code, Codex, OpenRouter or OpenCode Go
+assistant.py      handing a dictation to Claude Code, Codex, agy or a chat model
 api.py            transcription and cleanup requests (stdlib only)
-cleanup.py        who rewrites the transcript: OpenRouter, OpenCode Go, here, Claude or Codex
+cleanup.py        who rewrites the transcript: a hosted model, one here, a CLI
 ggml.py           whisper.cpp and llama.cpp here: fetch, verify, keep serving
 hub.py            what GitHub and Hugging Face have on offer today
 update.py         whether a newer release is out, and the page it is on