refactor(core): migrate to Bun and converge acquisition policies and Agent boundaries

packages/domain/src/slot/season-release.ts

@@ -0,0 +1,49 @@
+import type { ParsedRelease } from "../release-parser/types.ts";
+import { compareRank, currentPri, qualityTier, softRank } from "./evaluate.ts";
+import type { QualityFacts, SlotSpec } from "./types.ts";
+
+/** 缺少关键规格时不能声称同套；集号、文件名、种子 ID 不属于版本身份。 */
+export function seasonReleaseKey(q: QualityFacts): string | null {
+  if (!q.resolution || !q.source || !q.videoCodec || !q.releaseGroup?.name) return null;
+  return JSON.stringify([
+    q.resolution,
+    q.source,
+    q.videoCodec,
+    q.releaseGroup.name
+      .toLowerCase()
+      .split("@")
+      .map((g) => g.trim())
+      .sort(),
+    [...(q.hdr ?? [])].sort(),
+    q.cut ?? "default",
+  ]);
+}
+
+export function upgradeSpec(spec: SlotSpec): SlotSpec {
+  return {
+    ...spec,
+    ...(spec.upgradeRules ? { rules: spec.upgradeRules } : {}),
+    ...(spec.upgradeHard ? { hard: spec.upgradeHard } : {}),
+  };
+}
+
+/** 优先级、软偏好、规范化规格形成稳定顺序；同档对齐不允许质量降档。 */
+export function selectSeasonRelease(spec: SlotSpec, versions: readonly QualityFacts[]): QualityFacts | undefined {
+  let target: QualityFacts | undefined;
+  const rank = (q: QualityFacts) => {
+    const tier = qualityTier(q, spec);
+    return [
+      currentPri(spec, q),
+      tier.source,
+      tier.resolution,
+      ...softRank(spec, { raw: "", hdr: [], audio: [], ...q } as unknown as ParsedRelease),
+    ];
+  };
+  for (const q of versions) {
+    const key = seasonReleaseKey(q);
+    if (!key) continue;
+    const compared = target ? compareRank(rank(q), rank(target)) : 1;
+    if (compared > 0 || (compared === 0 && key < seasonReleaseKey(target!)!)) target = q;
+  }
+  return target;
+}