* ci: attribute npm package size by shipped component
* refactor: modularize size reporting and trim Apple runner
* ci: preserve size reporter modules across base checkout
* ci: keep Bundle Size job green on transient GitHub comment failures
The size measurement and job summary had already succeeded on PR #1789
(run 32050847506) when the PR comment write got a 503 during a GitHub
incident and failed the whole lane.
--post-comment now retries 5xx / 429 / network errors (4 attempts,
1s/2s/4s backoff) on both the list and write calls. If it still fails,
it prints a ::warning::, appends a note to $GITHUB_STEP_SUMMARY, and
exits 0. Other 4xx (bad token, missing permissions) stay fatal.
* refactor: split GitHub response classification to satisfy fallow complexity gate
* fix: reconcile uncertain comment creates instead of re-POSTing; add regressions
Retry now wraps the whole list -> write cycle rather than each request, so a
create whose response was lost (network error / 5xx) is re-listed on the next
attempt and turned into a PATCH of the marker comment instead of a duplicate
POST. Splits the retry/classify helpers under the fallow complexity gate.
Adds scripts/__tests__/size-report-post-comment.test.ts (unit-core): spawns the
real script against a stubbed fetch and pins uncertain-create reconciliation,
transient exhaustion (warn + exit 0), and fatal 4xx (nonzero, no retry).
SIZE_REPORT_RETRY_BASE_MS lets the tests skip real backoff.
Michał Pierzchała