fix(ci): use rye workspace instead of rye run pip (which doesn't exist)

Last commit tried `rye run pip install -e ./adk` in scripts/bootstrap, but
rye's uv-backed venv doesn't include pip by default — `rye run pip` fails
with "invalid or unknown script 'pip'".

The rye-native way to install workspace members is `[tool.rye.workspace]`.
The earlier suspicion that workspaces "didn't work" was wrong — the real
problem was the agentex/ namespace conflict between two editable installs,
which pkgutil.extend_path (added in src/agentex/__init__.py) now fixes.

So: reinstate the workspace config, drop the broken pip install line.
`rye sync --all-features` will install both root and adk/ editably and
extend_path merges their namespaces at import time.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: max-parke-scale

pyproject.toml

@@ -55,6 +55,13 @@ dev = [
 # The `agentex` CLI entry point ships from the ADK package — see
 # `adk/pyproject.toml`. The slim client has no CLI surface.
 
+[tool.rye.workspace]
+# `rye sync` from the root installs both this slim package and the ADK
+# overlay editably. The two contribute disjoint files to the same agentex.*
+# namespace — see the pkgutil.extend_path call in src/agentex/__init__.py
+# which merges their __path__ entries at import time.
+members = ["adk"]
+
 [tool.rye]
 managed = true
 # version pins are in requirements-dev.lock

scripts/bootstrap

@@ -25,11 +25,3 @@ echo "==> Installing Python dependencies…"
 rye config --set-bool behavior.use-uv=true
 
 rye sync --all-features
-
-# Install the sibling ADK package (agentex-sdk) editably so `agentex.lib.*`
-# imports resolve from the local source. The slim agentex-sdk-client (the
-# root package) has its agentex/__init__.py call pkgutil.extend_path so
-# the two source trees merge into the same `agentex.*` namespace at import
-# time.
-echo "==> Installing ADK overlay (agentex-sdk) editable…"
-rye run pip install -e ./adk