feat(domain): pure business logic for parsing, identity, slots, acquisition, paths, organize, download state (W1-2)

- release-parser: title/file/dir parsing with MP parity + deviations (airDate/issue,
  cut, release group suffix fallback, dir+file merge, safe episode offset)
- identity: title normalization (NFKC, trad->simp map, season suffix) and
  evidence-level candidate ranking (year tolerance ±1, no probabilities)
- slot: hard/soft/upgrade evaluation (missing vs unmet fields), state machine,
  movie/unit completion (season pack must be covered by actual file list)
- acquisition: new_title/catch_up/upgrade modes, priority order, budget,
  cache volume hard threshold with resume watermark (no double counting)
- path: immutable path bindings, restricted naming templates, sanitize,
  conflict detection, downloader<->host path mapping
- organize: planOrganize with sidecar pairing, sample exclusion, existing
  target policy, crossDevice marking, H&R -> conflict for move
- download-state: qB state mapping, completion, no-progress evidence

230 tests, ~97% statement coverage.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

packages/domain/src/release-parser/cn-number.ts

@@ -0,0 +1,38 @@
+const DIGITS: Record<string, number> = {
+  零: 0,
+  〇: 0,
+  一: 1,
+  二: 2,
+  两: 2,
+  兩: 2,
+  三: 3,
+  四: 4,
+  五: 5,
+  六: 6,
+  七: 7,
+  八: 8,
+  九: 9,
+};
+const UNITS: Record<string, number> = { 十: 10, 拾: 10, 百: 100, 千: 1000 };
+
+/** 中文数字/阿拉伯数字 → 整数;无法解析返回 undefined */
+export function cnToInt(s: string): number | undefined {
+  const t = s.trim();
+  if (/^\d+$/.test(t)) return Number.parseInt(t, 10);
+  if (t === "" || ![...t].every((c) => c in DIGITS || c in UNITS)) return undefined;
+  let total = 0;
+  let current = 0;
+  for (const c of t) {
+    const d = DIGITS[c];
+    if (d !== undefined) {
+      current = d;
+      continue;
+    }
+    const u = UNITS[c]!;
+    total += (current || 1) * u;
+    current = 0;
+  }
+  return total + current;
+}
+
+export const CN_NUM = "[0-9零〇一二两兩三四五六七八九十拾百千]+";