chore: prepare the 3.8.4 release (#787)

Bumps src.__version__ to 3.8.4 and turns Unreleased into ## 3.8.4: the
refresh-cap report (#759), a failed on-demand request ending its own session
(#779), reason codes instead of exception messages in API errors (#778),
and src.common.sports_rotation (#786, sports family 7), which the
scoreboards adopt by flooring on 3.8.4. src/common/README.md says 3.8.4 for
it, and the SPORTS_UNIFICATION module table gains its row.

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

CHANGELOG.md

@@ -19,6 +19,14 @@ accepts both, but the store flags the old spelling as deprecated
 
 ## Unreleased
 
+## 3.8.4
+
+A panel that cannot reach its refresh cap is reported with a cap it can hold
+(#759); a failed on-demand request ends its own session (#779); exception
+messages stay out of API responses (#778); and sports consolidation family 7,
+`src.common.sports_rotation`, which the scoreboards adopt by flooring on
+3.8.4 (#786).
+
 ### Scroll speed: a panel slower than its refresh cap is reported
 
 - Scroll speeds are solved against `limit_refresh_rate_hz`, so a panel that
@@ -63,8 +71,7 @@ accepts both, but the store flags the old spelling as deprecated
   games get odds when `show_odds` is on. `_rankings_loaded()` is the seam
   `_by_importance` asks (default: the abbreviation table is non-empty;
   football also counts its by-id table). A plugin may inherit the mixin once
-  it floors on the release that ships this module, and deletes its copies
-  then.
+  it floors on 3.8.4, and deletes its copies then. (#786)
 
 ## 3.8.3
 

docs/SPORTS_UNIFICATION.md

@@ -93,6 +93,7 @@ more. Shared sports code lives in `src/common`:
 | `sports_font_path.py` | 3.8.0 | `resolve_font_path` — what the plugins' `_resolve_font_path` copies return |
 | `sports_game_over.py` | 3.8.1 | `SportsGameOverMixin` — `_is_game_really_over`, with the `FINAL_PERIOD` seam (family 5) |
 | `sports_favorites.py` | 3.8.2 | `SportsFavoritesMixin`, `SportsUpcomingFavoritesMixin`, `SportsRecentFavoritesMixin` — `_is_favorite_game` and the favourites-only picks, on the `_favorite_key` seam (family 6) |
+| `sports_rotation.py` | 3.8.4 | `SportsRotationMixin` — the other-games rotation (importance order, the window, odds on rotated-in games), on the `_rankings_loaded` seam (family 7) |
 
 Each is described in [src/common/README.md](../src/common/README.md).
 

src/__init__.py

@@ -4,5 +4,5 @@ LEDMatrix Display System
 Core source package for the LED Matrix Display project.
 """
 
-__version__ = "3.8.3"
+__version__ = "3.8.4"
 

src/common/README.md

@@ -53,7 +53,7 @@ Rules for the package:
 | [`sports_helpers`](#sports_helpers) | Small helpers every scoreboard `sports.py` copies | Yes (scoreboards) | 3.5.0 |
 | [`sports_live_scroll`](#sports_live_scroll) | Rebuild a live scroll strip mid-cycle without moving it | Yes (scoreboards) | 3.8.0 |
 | [`sports_plugin_host`](#sports_plugin_host) | Helpers of a scoreboard's plugin class (`manager.py`) | Yes (scoreboards) | 3.8.0 |
-| [`sports_rotation`](#sports_rotation) | Which non-favourite games a scoreboard shows, and when the slice moves | Yes (scoreboards) | next release |
+| [`sports_rotation`](#sports_rotation) | Which non-favourite games a scoreboard shows, and when the slice moves | Yes (scoreboards) | 3.8.4 |
 | [`sports_scroll`](#sports_scroll) | Scoreboard scroll-display orchestration | Yes (scoreboards) | 3.2.0 |
 | [`sports_shared`](#sports_shared) | Sport-independent `sports.py` methods | Yes (scoreboards) | 3.3.0 |
 | [`sports_vegas`](#sports_vegas) | Live Vegas cards: keys, card cache, sticky odds, finished games | Yes (scoreboards) | 3.8.0 |