chore: Migrate ReadTheDocs config from Poetry to uv

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jsonbailey

.readthedocs.yml

@@ -1,16 +1,20 @@
 version: 2
 
-build:
-  os: "ubuntu-22.04"
-  tools:
-    python: "3.12"
-  jobs:
-    post_create_environment:
-      - python -m pip install poetry
-    post_install:
-      - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry install --with docs
-
 sphinx:
   builder: html
   configuration: docs/conf.py
   fail_on_warning: true
+
+build:
+  os: ubuntu-24.04
+  tools:
+    python: "3.12"
+  jobs:
+    pre_create_environment:
+      - asdf plugin add uv
+      - asdf install uv latest
+      - asdf global uv latest
+    create_environment:
+      - uv venv "${READTHEDOCS_VIRTUALENV_PATH}"
+    install:
+      - UV_PROJECT_ENVIRONMENT="${READTHEDOCS_VIRTUALENV_PATH}" uv sync --frozen --project packages/sdk/server-ai --group docs