feat(domain): W5-C subscription gaps, episode totals, multi-inflight slot, hard conditions and priority ladder

- resolveEpisodeTotal: totals only grow; TMDB regression floored at highest covered episode; manual lock
- computeUnitGaps / seasonProgress / unitsOverlap: missing = units ∩ range − covered − in-flight,
  season wildcard reservation, suspected-missing when total unknown
- transitionWithInflight: slot status aggregates several in-flight plans (Slot × unit reservation)
- hard conditions: excludeSources, hdr sets, codec sets, per-unit size, include/exclude regex
  (whitelist-validated), site scope, minSeeders, freeOnly (site facts via EvaluationContext)
- priority ladder (MP rule-group tiers) → pri 0-100 with per-tier trace; priority-basis upgrades,
  targetPri ceiling, upgrade modes movie/per_unit/full_pack, improvableUnits
- all evaluations carry readable trace via describeViolation

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/domain/src/slot/index.ts

@@ -6,17 +6,44 @@ export {
   type UnitCompletion,
   unitCompletion,
 } from "./completion.ts";
+export {
+  type EpisodeTotalInput,
+  type EpisodeTotalResult,
+  type EpisodeTotalSource,
+  resolveEpisodeTotal,
+} from "./episode-total.ts";
 export {
   checkHardConditions,
   compareRank,
+  currentPri,
   DEFAULT_SOURCE_TIERS,
+  describeViolation,
   evaluateCandidate,
+  improvableUnits,
+  priorityLadder,
   qualityTier,
   type RankedEvaluation,
   RESOLUTION_RANK,
   rankForSlot,
   softRank,
+  unitCountOf,
+  validateKeywordPattern,
 } from "./evaluate.ts";
+export {
+  computeUnitGaps,
+  episodeKey,
+  inRange,
+  parseUnitKey,
+  type SeasonProgress,
+  type SeasonProgressInput,
+  seasonProgress,
+  seasonWildcard,
+  type UnitGapInput,
+  type UnitGaps,
+  type UnitRange,
+  unitsOverlap,
+} from "./gaps.ts";
+export { busyStatus, type PlanStage, stageAfter, transitionWithInflight } from "./inflight.ts";
 export {
   canTransition,
   type SlotEvent,