fix(cron): keep helpful diagnostics under pipefail / shared snippet

- run_daily.sh: append '|| true' to the claude --version pipeline so a
  non-matching grep doesn't get propagated by pipefail+set -e, aborting
  before the '[[ -n CLAUDE_CODE_VERSION ]] || die' diagnostic fires.
- test_run_daily_release_pagination.py: the resolution-snippet extracted
  from run_daily.sh starts AFTER log/die are defined. Define stubs in
  the test preamble so an empty LITELLM_VERSION surfaces the intended
  error message instead of 'bash: die: command not found' (exit 127).

Co-authored-by: Yassin Kortam <yassin@berri.ai>

tests/claude_code/_publisher_unit_tests/test_run_daily_release_pagination.py

@@ -35,6 +35,17 @@ import pytest
 REPO_ROOT = Path(__file__).resolve().parents[3]
 RUN_DAILY = REPO_ROOT / "tests" / "claude_code" / "cron_vm" / "run_daily.sh"
 
+# The extracted snippet starts AFTER `log`/`die` are defined in run_daily.sh,
+# so the test harness has to provide its own stubs. Without them, a failure
+# inside the snippet (e.g. jq returning an empty LITELLM_VERSION) would crash
+# with `bash: die: command not found` (exit 127) instead of the intended
+# diagnostic, making test failures unnecessarily hard to debug.
+_PREAMBLE = (
+    "set -Eeuo pipefail\n"
+    "log() { printf '==> %s\\n' \"$*\" >&2; }\n"
+    "die() { printf 'ERROR: %s\\n' \"$*\" >&2; exit 1; }\n"
+)
+
 
 def test_run_daily_does_not_early_break_on_first_stable_page() -> None:
     """The regex pattern `select(test("...stable$"))] | length > 0` followed
@@ -211,8 +222,10 @@ def test_run_daily_resolves_highest_semver_across_pages(tmp_path: Path) -> None:
 
     snippet = _extract_resolution_snippet()
     script = (
-        "set -Eeuo pipefail\n"
-        f"WORKDIR={workdir!s}\n" + snippet + 'printf "%s" "${LITELLM_VERSION}"\n'
+        _PREAMBLE
+        + f"WORKDIR={workdir!s}\n"
+        + snippet
+        + 'printf "%s" "${LITELLM_VERSION}"\n'
     )
 
     env = {
@@ -249,8 +262,10 @@ def test_run_daily_terminates_on_empty_page(tmp_path: Path) -> None:
 
     snippet = _extract_resolution_snippet()
     script = (
-        "set -Eeuo pipefail\n"
-        f"WORKDIR={workdir!s}\n" + snippet + 'printf "%s" "${LITELLM_VERSION}"\n'
+        _PREAMBLE
+        + f"WORKDIR={workdir!s}\n"
+        + snippet
+        + 'printf "%s" "${LITELLM_VERSION}"\n'
     )
 
     env = {

tests/claude_code/cron_vm/run_daily.sh

@@ -194,7 +194,11 @@ CLAUDE_CODE_VERSION="$(env -i \
   TMPDIR="${TMPDIR:-/tmp}" \
   claude --version 2>/dev/null \
   | grep -oE '[0-9]+\.[0-9]+\.[0-9]+([.-][A-Za-z0-9.-]+)?' \
-  | head -n1)"
+  | head -n1 || true)"
+# `|| true` above keeps `set -Eeuo pipefail` from aborting silently when
+# `grep` finds no match (exit 1) — without it the assignment inherits the
+# pipeline's non-zero exit, `set -e` kills the script, and the operator
+# never sees the helpful diagnostic below.
 [[ -n "${CLAUDE_CODE_VERSION}" ]] || die "could not parse semver from 'claude --version'"
 log "local claude code: ${CLAUDE_CODE_VERSION}"