feat: M0-M2 骨架落地（服务端/前端/宿主/数据库/积分引擎）

- server: Go 单二进制骨架，embed 内嵌前端，配置/迁移/HTTP 路由
- store: system.db + event.db 两套迁移，业务表 + 种子数据
- domain: 积分引擎（并列三口径/计分通道/流水/排名/破纪录）+ 68 个测试
- web: Vite + Vue 三入口骨架 + shared 层（类型/API/WebSocket 客户端）
- console: Electron 宿主骨架（选屏/防熄屏/进程守护/托盘）

server/migrations/event/0005_entries_results.sql

@@ -0,0 +1,49 @@
+CREATE TABLE IF NOT EXISTS entries (
+    id           INTEGER PRIMARY KEY AUTOINCREMENT,
+    event_id     INTEGER NOT NULL REFERENCES events(id),
+    category_id  INTEGER NOT NULL REFERENCES event_categories(id),
+    team_id      INTEGER NOT NULL REFERENCES teams(id),
+    athlete_id   INTEGER REFERENCES athletes(id),
+    member_names TEXT,
+    bib          TEXT,
+    seed         TEXT,
+    status       TEXT NOT NULL DEFAULT 'registered'
+                 CHECK (status IN ('registered', 'scratched', 'dq', 'dns')),
+    remark       TEXT,
+    created_at   TEXT NOT NULL DEFAULT (datetime('now')),
+    UNIQUE (category_id, team_id, athlete_id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_entries_event_id ON entries(event_id);
+CREATE INDEX IF NOT EXISTS idx_entries_team_id ON entries(team_id);
+CREATE INDEX IF NOT EXISTS idx_entries_athlete_id ON entries(athlete_id);
+CREATE INDEX IF NOT EXISTS idx_entries_category_id ON entries(category_id);
+-- athlete_id 为 NULL 时 UNIQUE 视为互不相等，团体项目的重复报名靠这条部分索引兜住。
+CREATE UNIQUE INDEX IF NOT EXISTS idx_entries_team_unique
+    ON entries(category_id, team_id) WHERE athlete_id IS NULL;
+
+CREATE TABLE IF NOT EXISTS results (
+    id              INTEGER PRIMARY KEY AUTOINCREMENT,
+    event_id        INTEGER NOT NULL REFERENCES events(id),
+    entry_id        INTEGER NOT NULL UNIQUE REFERENCES entries(id),
+    rank            INTEGER CHECK (rank IS NULL OR rank >= 1),
+    result_text     TEXT,
+    result_value    REAL,
+    unit            TEXT,
+    is_tie          INTEGER NOT NULL DEFAULT 0 CHECK (is_tie IN (0, 1)),
+    points_override REAL,
+    status          TEXT NOT NULL DEFAULT 'ok'
+                    CHECK (status IN ('ok', 'dq', 'dns', 'dnf', 'withdrawn')),
+    state           TEXT NOT NULL DEFAULT 'draft' CHECK (state IN ('draft', 'published')),
+    -- recorded_by / verified_by 指向系统库 users，跨库不能建外键。
+    recorded_by     INTEGER,
+    recorded_at     TEXT,
+    verified_by     INTEGER,
+    verified_at     TEXT,
+    note            TEXT,
+    created_at      TEXT NOT NULL DEFAULT (datetime('now')),
+    updated_at      TEXT NOT NULL DEFAULT (datetime('now'))
+);
+
+CREATE INDEX IF NOT EXISTS idx_results_event_state ON results(event_id, state);
+CREATE INDEX IF NOT EXISTS idx_results_event_rank ON results(event_id, rank);