Adds five new u32 counters (skipped_gitignore, skipped_kebabignore,
skipped_builtin_blacklist, skipped_generated, skipped_size_exceeded)
and a SkipExamples struct (≤5 sample paths per category) to
IngestReport. All new fields are #[serde(default)] for backward-compat
deserialization. Downstream literal construction sites patched with
zeros/empty; snapshot re-baked.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
351c7a0826