plan oxidation

- add the drivers
 - add the uniffi build toolchain
 - create the plan document

.oxfmtrc.json

@@ -2,5 +2,10 @@
   "$schema": "./node_modules/oxfmt/configuration_schema.json",
   "printWidth": 80,
   "sortPackageJson": false,
-  "ignorePatterns": ["pnpm-lock.yaml", "node_modules", "dist"]
+  "ignorePatterns": [
+    "pnpm-lock.yaml",
+    "node_modules",
+    "dist",
+    "src/matrix-rtc-sdk/generated"
+  ]
 }