Bring the starter agents' Python dependency pins (pyproject.toml + uv.lock
for adk, langgraph-fastapi, langgraph-python, pydantic-ai, strands-python;
requirements.txt + docker override for crewai-crews) in line with the
showcase fleet pin standard.
The smoke-test app Dockerfiles ran `RUN npm install next@latest` right after
installing the pinned deps from package.json. This overrode the deliberate
`next` pin with a floating version (non-deterministic builds) and added a
flaky network round-trip that broke the agno smoke build with ECONNRESET on
2026-06-04 (run 26972381969). Every affected starter already pins `next` in
package.json (agno 16.0.7, adk 16.1.1, crewai ^15.5.15, llamaindex 16.0.8,
ms-agent-framework-python 16.0.8, pydantic-ai 16.0.7), so the extra install
is pure harm. Removing it makes builds deterministic and removes the network
fragility.
The updateProverb useFrontendTool passed the live `agent` object in its
deps array. react-core's use-frontend-tool does JSON.stringify(extraDeps),
which throws "Converting circular structure to JSON" on agent.activeRunDetach$
(an RxJS Subject), crashing the React tree so no assistant bubble renders.
`agent`/`agent.setState` are stable references; only `state` needs to be a
dep. Also bump the docker ag-ui-crewai override to >=0.2.0,<0.3.0 to match
agent/requirements.txt and the showcase backend.
Source route.ts files now read process.env.AGENT_URL natively (PR #3737),
so the build-time sed patches and verification greps are no longer needed.
Also removes crewai-crews docker-route-override.ts and its COPY line,
since that starter's route.ts already has AGENT_URL support.
Ran Shem Tov