Show each rerun attempt outcome in summary

[LouisDeconinck]

Fixes #191. The rerun summary now preserves one report per test attempt and displays each rerun and final outcome with pytest-style status colors. Tests: .venv/bin/pytest -q; pre-commit run --all-files --show-diff-on-failure.

[icemac]

Review of the rerun-summary change. Findings 1–3 (xdist crash reruns, teardown tracebacks, xdist ordering) were reproduced by running the plugin on master vs. this branch; the full suite passes on the branch because the existing summary tests only assert outcomes.

— Comment created by Claude

[LouisDeconinck]

Thanks for the thorough review — all findings reproduced and addressed in 97fb513:

• xdist crash reruns vanish: pytest_handlecrashitem now stamps report.rerun with the attempt index (from get_test_failures, before add_test_failure), so crash reports are collected and ordered alongside the rescheduled attempt's own reports. pytest -n 2 --reruns 2 -r R on an os._exit(1) test now prints RERUN, RERUN, FAILED — matching the 2 rerun footer.
• Dropped teardown traceback / hidden final ERROR: the (nodeid, rerun) dedup is gone. Each emitted report gets its own line (sorted by rerun, then setup/call/teardown), so a call+teardown failure in one attempt shows both RERUN lines with both tracebacks under --rerun-show-tracebacks, and the final attempt shows FAILED + ERROR.
• xdist ordering: reports are grouped by nodeid (first-seen order) then sorted by attempt number, so interleaved worker reports render as contiguous per-test groups.
• Traceback lines re-colourised: show_rerun now returns (line, markup) pairs; traceback lines carry None markup and are written plainly.
• Re-implemented pytest_report_teststatus: status words and markup now come from config.hook.pytest_report_teststatus (with the same default outcome colouring _pytest/terminal.py applies for plain-string words), so ERROR, SKIPPED, XFAIL/XPASS, and third-party categories are all handled consistently.
• RerunSummary duplicates terminalreporter.stats: the plugin is removed entirely; show_rerun iterates chain.from_iterable(terminalreporter.stats.values()) filtered on hasattr(report, "rerun"), which also fixes the ordering issue per your suggestion.
• Unreachable get_plugin fallback: gone with the plugin removal — -p no:pytest-rerunfailures-summary no longer exists as a silent revert path.
• Coverage: added tests for the ERROR (failed setup) and SKIPPED (skipped call + failing teardown) paths, call+teardown traceback preservation, the crash summary line, and xdist per-test grouping; the colour assertions are now scoped to the rerun section.

On XFAIL/XPASS specifically: xfail-marked tests never reach the summary in practice — _should_not_rerun excludes wasxfail reports, and pytest converts teardown failures on xfail-marked tests into xfail too. Delegating to the hook still honours those (and any plugin-specific) statuses if they ever appear.

Verified locally: 248 tests pass on pytest 9.1.1 + xdist 3.8.0, ruff check/format clean.

[icemac]

LGTM