Normalize shell and patch tool cards

PLAN.md

@@ -114,6 +114,12 @@ seq N", so there is no separate history path to drift from the live one.
   by drivers**, so every device renders the conversation from one stream.
 - `AssistantText { delta }` — streaming text, rendered as markdown.
 - `ToolStart / ToolUpdate / ToolEnd { tool, input, output }`.
+  The tool vocabulary is common too (2026-09-09), not just the envelope:
+  Codex's `/usr/bin/bash -lc` argv and Claude's Bash call are both
+  `Bash { command }`, while Codex file changes and Claude Edit calls are both
+  `Patch { diff }`. Patch success boilerplate is omitted and failures remain
+  as output. This normalization belongs in the drivers, before persistence;
+  the phone never decodes a provider's tool schema.
 - `Image { ref }` — saved under the session dir, fetched by URL.
 - `Question { id, prompt, options }` — anything needing a human. Claude's
   AskUserQuestion and permission requests (canUseTool) are the same shape;