fix(smoke-claude): raise turn budget to 8 and fix add_comment usage (#5328)

* fix(smoke-claude): raise turn budget to 8 and fix add_comment usage

The Smoke Claude job was failing with "403 Maximum LLM invocations
exceeded (5 / 5)". The agent burned one of only five api-proxy runs on
an empty-args `add_comment` schema probe (`safeoutputs add_comment .`
with JSON piped via stdin yields `args: {}`, rejected by MCP), and the
cumulative cap left no room to retry.

Two-pronged fix:
- Raise `max-turns` 5 -> 8 for headroom (expands to --max-turns,
  GH_AW_MAX_TURNS, and apiProxy maxRuns).
- Add explicit prompt guidance to pass `add_comment` arguments inline as
  a single JSON object and never pipe JSON via stdin or pass `.`.

Recompiled the lock and re-ran the smoke post-processing script. Updated
smoke-claude-workflow.test.ts assertions accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: address smoke claude review feedback

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

Author: 3 people

.github/workflows/smoke-claude.lock.yml

@@ -15,7 +15,7 @@ permissions:
   pull-requests: read
 
 name: Smoke Claude
-max-turns: 5
+max-turns: 8
 engine:
   id: claude
   model: claude-haiku-4-5
@@ -150,6 +150,7 @@ All data is pre-computed. Read `/tmp/gh-aw/agent/final-result.json` (one bash ca
 The JSON contains: `result` (PASS/FAIL), `api_status`, `gh_check`, `file_status`, `event`, `pr_number`.
 
 - If `event` is `pull_request`: call `add_comment` with `item_number` set to `pr_number` and a body listing each check result plus the overall `result`; then call `add_labels` with `["smoke-claude"]` only if `result` is `PASS`.
+- Pass arguments inline as a single JSON object, e.g. `safeoutputs add_comment '{"item_number": 123, "body": "Smoke Claude result: PASS"}'`. Do NOT pipe JSON via stdin and do NOT pass `.` (or any placeholder) as the argument — that sends empty arguments and the call is rejected as a schema probe, wasting a turn.
 - Never call `add_comment` or `add_labels` with empty arguments or as a schema probe. Use explicit arguments only.
 - Otherwise: call `noop` with the result summary.