feat(series): add series/cup championships with points tables and standings

Group any number of races in freely chosen classes into a series with a
points table (ÖRC/100-80-70/F1/custom), best-N or drop-X counting, a
club filter that re-ranks members without guests, tie-breaks, rounds
created from a date list, and per-class standings with print and PDF.

Also fixes PDF export of wide tables: they are compacted and switched
to landscape instead of truncating names and dropping columns.

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

tests/run.js

@@ -1,6 +1,7 @@
 import "./auth.test.js";
 import "./prologue_logic.test.js";
 import "./suspect_laps_logic.test.js";
+import "./series_logic.test.js";
 import "./tts.test.js";
 import "./piper_speech.test.js";
 import "./driver_profile_logic.test.js";