feat(common): sports_rankings -- the reconciled rankings (sports family 8) (#789)

* feat(common): sports_rankings -- the reconciled rankings family (sports family 8)

New hardware-free module src/common/sports_rankings.py, copied from
ledmatrix-plugins claude/family8-reconcile once the nine scoreboards made
_fetch_team_rankings, _choose_poll (three bodies each),
_load_division_team_ids, _passes_other_filters, _best_rank and
_is_ranked_game (two each) one body each. All of them live on the plugins'
SportsCore, so one mixin, SportsRankingsMixin, carries exactly those six
plus _ranked_positions and _poll_season_ended and the constants they read;
no manager gains a method it lacks today.

- Ranks are kept by ESPN team id as well as abbreviation, and a game with
  ids is ranked by id (ESPN lists Ohio State and Ohio State Newark both as
  OSU). The badge still reads the abbreviation table.
- A poll whose season's endDate has passed loads nothing, so no badge shows
  and the "ranked" filter fails open between seasons (ESPN served April's
  college basketball poll on 2026-10-12); read from the payload, no
  calendar, no sport names.
- College football's division rosters are asked for the season year
  (football's July rule; only that league has rosters, so no seam).
- choose_top_division_poll(): the one poll rule, for the dynamic team
  resolvers that expand AP_TOP_n.

- test/test_sports_rankings.py: the plugins' pinned cases (poll choice,
  which leagues are asked, payload shapes, hourly cache, the finished-season
  rows, the rosters' season year and caching, ranked/best rank/filter over
  colliding abbreviations), plus the host contract. Mutation-checked.
- test/test_sports_rankings_parity.py: with LEDMATRIX_PLUGINS, compares each
  body and constant with every plugin copy. Passes against
  claude/family8-reconcile; fails against the pre-reconcile tree.
- mypy ratchet, src/common/README.md, CHANGELOG (Unreleased, New modules).
- sports_shared and sports_rotation docstrings: the three methods leave the
  "stay per-plugin" list.
- docs/SPORTS_UNIFICATION.md: family 8 status and decisions; item 8 restated
  to match what measuring found (the standings branch never ran; the season
  year only matters to college football).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs: cite ledmatrix-plugins #645 for the family 8 reconcile

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* ci: re-run code scanning (the Python analysis job never started)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

src/common/sports_shared.py

@@ -55,13 +55,15 @@ State: ``config``, ``fonts``, ``logger``, ``display_width``, ``display_height``,
 Methods that stay per-plugin, because they are not identical across the eight
 (or, for ``_get_timezone``, because they bind per-plugin modules):
 ``_get_layout_offset``, ``_upcoming_date_and_time_text``,
-``_extract_game_details_common``, ``_load_division_team_ids``,
-``_get_timezone``, ``_is_ranked_game``, ``_passes_other_filters``. Three
-families were here until the plugins reconciled them: ``_is_game_really_over``,
-which ``_detect_stale_games`` below calls, is now ``src.common.sports_game_over``;
-``_is_favorite_game`` is ``src.common.sports_favorites``; and
+``_extract_game_details_common``, ``_get_timezone``. Four families were
+here until the plugins reconciled them: ``_is_game_really_over``, which
+``_detect_stale_games`` below calls, is now ``src.common.sports_game_over``;
+``_is_favorite_game`` is ``src.common.sports_favorites``;
 ``_by_importance`` and ``_other_games_window``, which ``_favorites_first`` and
-``_compose_selection`` below call, are ``src.common.sports_rotation``.
+``_compose_selection`` below call, are ``src.common.sports_rotation``; and
+``_load_division_team_ids``, ``_is_ranked_game`` and ``_passes_other_filters``
+(``_game_divisions``, ``_check_ranking_coverage`` and ``_favorites_first``
+below call them) are ``src.common.sports_rankings``.
 
 Of the fourteen shared class constants, thirteen are identical everywhere and
 live here. Only ``_SCORE_PROBE_TEXT`` varies -- afl and basketball reach three digits