refactor: 以 bzzoiro 为唯一数据源的全面重构

数据源统一为 bzzoiro,移除 Understat 与 injuries:
- 删除 src/data/understat.py / injuries.py 及相关测试
- 删除 injuries 模型与表;扩展 match_stats(xG 之外增加 big_chances/fouls)
- 新增 standings 表(联赛积分榜:位置/积分/xG/走势/分区)
- matches 表增加 source_event_id 血缘列,支撑统计回填

采集管线(bzzoiro 三条管线):
- events:赛程/比分(/events/),记录 source_event_id
- standings:积分榜快照(/leagues/{id}/standings/)
- stats:已完赛比赛详细统计回填(/events/{id}/stats/)

预测增强:
- standings_slice 替代 injuries_slice;积分榜专家替代阵容完整性专家
- AGENT_META runtime_config 同步更新

管理后台:
- ingest 路由重写为单一 bzzoiro 入口 + task 参数(events/standings/stats/all)
- 新增 /admin/data-completeness 数据完整性分析 API
- 数据源状态页简化为 bzzoiro 单源

前端:
- 采集页重构为任务驱动(比赛/积分榜/统计回填/全量)
- 新增「数据完整性」可视化页(覆盖率矩阵/字段完整率/健康摘要)
- 新增主站积分榜页(/standings)与比赛详情完整统计面板
- agent 名称同步更新(injuries→standings)

迁移 0015_bzzoiro_single_source 已在容器内验证通过,后端测试全部通过。

Co-Authored-By: new-provider/LongCat-2.0 <<EMAIL>>

frontend/src/pages/Matches.tsx

@@ -2,6 +2,7 @@ import { useCallback, useEffect, useRef, useState } from 'react'
 import TeamSideTag from '../components/TeamSideTag'
 import { fetchMatchDetail, fetchMatchContext } from '../admin/dal'
 import type { MatchDetailOut, MatchContextOut, MatchRecentPrediction, TeamRecentMatch } from '../admin/types'
+import type { MatchStatsDetail } from '../admin/types'
 
 interface Match {
   id: number
@@ -63,7 +64,7 @@ const AGENT_LABELS: Record<string, string> = {
   form: '近期状态分析专家',
   stats: '攻防数据分析专家',
   home_away: '主客因素分析专家',
-  injuries: '阵容完整性分析专家',
+  standings: '联赛排名分析专家',
 }
 
 const LEAGUES = [
@@ -679,7 +680,7 @@ function PredictProgress() {
   const AGENT_START = 4
   const AGENT_STEP = 8        // 每路专家约 8s 点亮一路
   const AGG_START = AGENT_START + AGENT_STEP * 5
-  const agents = ['form', 'stats', 'home_away', 'injuries', 'h2h']
+  const agents = ['form', 'stats', 'home_away', 'standings', 'h2h']
 
   const phase = elapsed < SLICE_END ? 'slice'
     : elapsed < AGG_START ? 'agents' : 'agg'
@@ -1114,6 +1115,11 @@ function MatchDetailPanel({
             )}
           </div>
 
+          {/* 比赛详细统计(bzzoiro /events/{id}/stats/) */}
+          {detail?.stats && (
+            <MatchStatsPanel stats={detail.stats} homeName={homeName} awayName={awayName} />
+          )}
+
           {/* 双方近况 + H2H */}
           {(ctx?.home_recent?.length || ctx?.away_recent?.length || ctx?.h2h?.length) ? (
             <div className="grid gap-4 sm:grid-cols-3">
@@ -1144,6 +1150,80 @@ function MatchDetailPanel({
   )
 }
 
+/** 比赛详细统计面板(bzzoiro /events/{id}/stats/) */
+function MatchStatsPanel({
+  stats, homeName, awayName,
+}: { stats: MatchStatsDetail; homeName: string; awayName: string }) {
+  const rows: Array<{ label: string; home: number | null; away: number | null; highlight?: 'high' | 'low' }> = [
+    { label: '预期进球(xG)', home: stats.home_xg, away: stats.away_xg },
+    { label: '射门', home: stats.home_shots, away: stats.away_shots },
+    { label: '射正', home: stats.home_shots_on_target, away: stats.away_shots_on_target },
+    { label: '角球', home: stats.home_corners, away: stats.away_corners },
+    { label: '犯规', home: stats.home_fouls, away: stats.away_fouls },
+    { label: '绝佳机会', home: stats.home_big_chances, away: stats.away_big_chances },
+    { label: '黄牌', home: stats.home_yellow_cards, away: stats.away_yellow_cards },
+    { label: '红牌', home: stats.home_red_cards, away: stats.away_red_cards },
+  ]
+  const hasAny = rows.some(r => r.home != null || r.away != null)
+  if (!hasAny) return null
+
+  // 控球率用横条展示
+  const possHome = stats.home_possession
+  const possAway = possHome != null ? Math.max(0, 100 - possHome) : null
+
+  return (
+    <div>
+      <h4 className="section-head mb-2">比赛统计</h4>
+
+      {/* 控球率横条 */}
+      {possHome != null && possAway != null && (
+        <div className="mb-3">
+          <div className="mb-1 flex justify-between text-2xs text-ink-500">
+            <span>{possHome.toFixed(0)}%</span>
+            <span className="text-ink-400">控球率</span>
+            <span>{possAway.toFixed(0)}%</span>
+          </div>
+          <div className="flex h-1.5 overflow-hidden rounded-full bg-ink-200">
+            <div className="bg-ink-700 transition-[width] duration-500" style={{ width: `${possHome}%` }} />
+            <div className="bg-ink-300 transition-[width] duration-500" style={{ width: `${possAway}%` }} />
+          </div>
+        </div>
+      )}
+
+      {/* 主客对比表 */}
+      <div className="overflow-x-auto">
+        <table className="w-full text-xs">
+          <thead>
+            <tr className="border-b border-ink-200 text-ink-400">
+              <th className="py-1.5 text-left font-medium">{homeName}</th>
+              <th className="py-1.5 text-center font-medium text-ink-500">统计项</th>
+              <th className="py-1.5 text-right font-medium">{awayName}</th>
+            </tr>
+          </thead>
+          <tbody>
+            {rows.filter(r => r.home != null || r.away != null).map(r => {
+              const h = r.home ?? 0
+              const a = r.away ?? 0
+              const winner = h > a ? 'home' : h < a ? 'away' : 'tie'
+              return (
+                <tr key={r.label} className="border-b border-ink-100">
+                  <td className={`py-1.5 text-right tabular-nums ${winner === 'home' ? 'font-bold text-ink-900' : 'text-ink-500'}`}>
+                    {r.home ?? '—'}
+                  </td>
+                  <td className="py-1.5 text-center text-ink-500">{r.label}</td>
+                  <td className={`py-1.5 text-left tabular-nums ${winner === 'away' ? 'font-bold text-ink-900' : 'text-ink-500'}`}>
+                    {r.away ?? '—'}
+                  </td>
+                </tr>
+              )
+            })}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  )
+}
+
 /** 近况/H2H 单区块 */
 function RecentBlock({ title, rows, side }: { title: string; rows?: TeamRecentMatch[]; side: 'home' | 'away' | 'h2h' }) {
   return (

frontend/src/pages/Standings.tsx

@@ -0,0 +1,174 @@
+/**
+ * 主站 - 联赛积分榜页
+ *
+ * 展示各联赛最新积分榜(位置/积分/净胜/xG差/近期走势/分区),
+ * 数据来自 bzzoiro /leagues/{id}/standings/ 管线采集。
+ */
+
+import { useEffect, useState, useCallback } from 'react'
+import { fetchStandings } from '../admin/dal'
+import type { StandingsLeague, StandingRow } from '../admin/dal'
+
+const LEAGUES = [
+  { code: 'E0', name: '英超' },
+  { code: 'SP1', name: '西甲' },
+  { code: 'D1', name: '德甲' },
+  { code: 'I1', name: '意甲' },
+  { code: 'F1', name: '法甲' },
+  { code: 'CL', name: '欧冠' },
+  { code: 'EL', name: '欧联' },
+]
+
+const ZONE_META: Record<string, { label: string; cls: string }> = {
+  'Champions League': { label: '欧冠区', cls: 'bg-emerald-100 text-emerald-700' },
+  'Europa League': { label: '欧联区', cls: 'bg-amber-100 text-amber-700' },
+  'Relegation': { label: '降级区', cls: 'bg-rose-100 text-rose-700' },
+}
+
+function zoneBadge(zone?: string | null) {
+  if (!zone) return null
+  const meta = ZONE_META[zone] ?? { label: zone, cls: 'bg-ink-100 text-ink-600' }
+  return <span className={`rounded px-1.5 py-0.5 text-2xs font-medium ${meta.cls}`}>{meta.label}</span>
+}
+
+/** 近期走势串(W/D/L) → 彩色圆点 */
+function FormDots({ form }: { form?: string | null }) {
+  if (!form) return <span className="text-2xs text-ink-400">—</span>
+  const colorMap: Record<string, string> = { W: 'bg-emerald-500', D: 'bg-ink-300', L: 'bg-rose-500' }
+  return (
+    <span className="inline-flex gap-0.5">
+      {form.slice(0, 5).split('').map((c, i) => (
+        <span key={i} className={`inline-block h-1.5 w-1.5 rounded-full ${colorMap[c] ?? 'bg-ink-200'}`} />
+      ))}
+    </span>
+  )
+}
+
+export default function StandingsPage() {
+  const [leagues, setLeagues] = useState<StandingsLeague[]>([])
+  const [activeLeague, setActiveLeague] = useState<string>('')
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
+
+  const load = useCallback(async (code?: string) => {
+    setLoading(true)
+    setError(null)
+    try {
+      const data = await fetchStandings(code)
+      setLeagues(data.leagues)
+      if (!activeLeague && data.leagues.length > 0) {
+        setActiveLeague(data.leagues[0].league_code)
+      }
+    } catch (err) {
+      setError(err instanceof Error ? err.message : '加载失败')
+    } finally {
+      setLoading(false)
+    }
+  }, [activeLeague])
+
+  useEffect(() => { load() }, []) // eslint-disable-line react-hooks/exhaustive-deps
+
+  const active = leagues.find(l => l.league_code === activeLeague) ?? leagues[0]
+
+  return (
+    <div className="space-y-6">
+      {/* 联赛切换 */}
+      <div className="flex flex-wrap gap-2">
+        {LEAGUES.map(l => (
+          <button
+            key={l.code}
+            onClick={() => { setActiveLeague(l.code); load(l.code) }}
+            className={`rounded border px-3 py-1.5 text-xs transition-colors ${
+              activeLeague === l.code
+                ? 'border-ink-900 bg-ink-900 text-paper-50'
+                : 'border-ink-200 text-ink-500 hover:border-ink-300'
+            }`}
+          >
+            {l.name}
+          </button>
+        ))}
+      </div>
+
+      {error && (
+        <div className="border border-rose-300 bg-rose-50 px-4 py-3 text-sm text-rose-700">
+          {error}
+        </div>
+      )}
+
+      {loading && (
+        <div className="flex justify-center py-12 text-xs text-ink-400">加载中…</div>
+      )}
+
+      {!loading && !active && (
+        <div className="border-y border-ink-200 py-12 text-center">
+          <p className="font-serif text-sm text-ink-600">暂无积分榜数据</p>
+          <p className="mt-1.5 text-xs text-ink-400">
+            请先在管理后台「数据采集」页运行「积分榜」任务。
+          </p>
+        </div>
+      )}
+
+      {active && (
+        <div>
+          <div className="mb-3 flex items-center justify-between border-b border-ink-200 pb-2">
+            <div>
+              <h2 className="font-serif text-lg font-bold text-ink-900">
+                {active.league_name}
+              </h2>
+              <p className="text-xs text-ink-400">
+                {active.season} 赛季 · {active.rows.length} 队
+                {active.retrieved_at && ` · 更新于 ${new Date(active.retrieved_at).toLocaleDateString('zh-CN')}`}
+              </p>
+            </div>
+          </div>
+
+          {/* 积分榜表格 */}
+          <div className="overflow-x-auto">
+            <table className="w-full text-xs">
+              <thead>
+                <tr className="border-b border-ink-200 text-left text-ink-400">
+                  <th className="w-8 py-2 font-medium">#</th>
+                  <th className="py-2 font-medium">球队</th>
+                  <th className="w-10 text-center py-2 font-medium">赛</th>
+                  <th className="w-10 text-center py-2 font-medium">胜</th>
+                  <th className="w-10 text-center py-2 font-medium">平</th>
+                  <th className="w-10 text-center py-2 font-medium">负</th>
+                  <th className="w-12 text-center py-2 font-medium">进/失</th>
+                  <th className="w-12 text-center py-2 font-medium">净</th>
+                  <th className="w-14 text-center py-2 font-medium">积分</th>
+                  <th className="w-16 text-center py-2 font-medium">xG±</th>
+                  <th className="w-20 text-center py-2 font-medium">走势</th>
+                  <th className="w-16 text-right py-2 font-medium">区</th>
+                </tr>
+              </thead>
+              <tbody>
+                {active.rows.map((r: StandingRow) => (
+                  <tr key={r.position} className="border-b border-ink-100 hover:bg-paper-100">
+                    <td className="py-2 font-medium text-ink-700">{r.position}</td>
+                    <td className="py-2 font-medium text-ink-900">{r.team}</td>
+                    <td className="text-center py-2 text-ink-500">{r.played}</td>
+                    <td className="text-center py-2 text-ink-500">{r.won}</td>
+                    <td className="text-center py-2 text-ink-500">{r.drawn}</td>
+                    <td className="text-center py-2 text-ink-500">{r.lost}</td>
+                    <td className="text-center py-2 text-ink-500">{r.goals_for}/{r.goals_against}</td>
+                    <td className={`text-center py-2 ${r.goal_diff > 0 ? 'text-emerald-600' : r.goal_diff < 0 ? 'text-rose-600' : 'text-ink-500'}`}>
+                      {r.goal_diff > 0 ? `+${r.goal_diff}` : r.goal_diff}
+                    </td>
+                    <td className="text-center py-2 font-bold text-ink-900">{r.points}</td>
+                    <td className="text-center py-2 text-ink-500">
+                      {r.xg_for != null && r.xg_against != null
+                        ? `${(r.xg_for - r.xg_against).toFixed(1)}`
+                        : '—'}
+                    </td>
+                    <td className="py-2"><div className="flex justify-center"><FormDots form={r.form} /></div></td>
+                    <td className="py-2 text-right">{zoneBadge(r.zone)}</td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          </div>
+        </div>
+      )}
+    </div>
+  )
+}