Fix Hunt Week double-counting of pre-game activities (#247)

* Fix Hunt Week double-counting of pre-game activities

The hunt week leaderboard reconstructed scores as initialState.points +
getPointsInPeriod(startsAt, endsAt), but initialState.points was captured
from userChallenges.totalPoints at activation time while startsAt was
midnight UTC — activities between midnight and activation were counted in
both, inflating scores unevenly across players.

Replace the reconstruction with getPointsUpToDate() which sums all
non-deleted, non-mini-game activities with loggedDate <= endsAt. This uses
a single source of truth bounded by the game end date, eliminating both
the double-count and any post-game activity leakage.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Rename getHuntWeekLeaderboard to generic getMiniGameLeaderboard

Export the function so any mini-game type can compute activity-based
standings bounded by game end date. Drop the unused startsAt param.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Add hunt week audit/fix CLI for double-counting remediation

Adds internalQuery (audit) and internalMutation (fix) to check and correct
hunt week scores that were calculated with the double-counting bug. The fix
mutation supports a favorableOnly flag to only apply corrections that
increase a player's bonus points.

Shell script provides a simple CLI:
  ./scripts/hunt-week-audit.sh              # dry run
  ./scripts/hunt-week-audit.sh --fix --prod # fix all on prod
  ./scripts/hunt-week-audit.sh --fix-favorable --prod  # only increases

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Add detailed correction notes to hunt week fix activities

The notes now include: original vs corrected award, rank change, the
player's recalculated points and rank, prey/hunter names with their
points and whether catch/escape occurred, and a one-line explanation
of the bug. externalData also stores corrected/previous rank.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Add tests for hunt week audit and fix mutations

Tests cover:
- audit detects no discrepancies for correctly scored games
- audit detects discrepancies for buggy scores (simulated double-count)
- audit only returns completed hunt week games
- fix corrects all discrepant scores and creates correction notes
- fix with favorableOnly skips unfavorable corrections
- fix targets a specific game when miniGameId provided
- fix does not create bonus activity when correct bonus is 0
- fix updates totalPoints correctly after correction

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: prazgaitis