Adds DirtyFingerprint var and composeVersionDisplay() helper to
xcecli/cmd/main.go, a logical duplicate of apiserver's just-approved
implementation (task 4.4, same anchored strings.TrimSuffix strip-and-
append rule). Applied at the sole consumption point: the version string
fed into router.Execute(cm, version), which sets Cobra's rootCmd.Version.
router.go is untouched -- xcecli has no startup log to protect, already
established out of scope by the original build-time-versioning feature.
New main_test.go covers the same 6 cases as apiserver's tests. Verified
independently by review (including a second, independent mutation test)
with real builds across all 3 required scenarios and a full xcecli module
test suite run showing no regressions.
This completes all Go binary work (tasks 4.1-4.5) for this spec.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Rongsong Shen
d65d18ad5f