Ship Steam login, D1 player sync, and cached「我」dashboard.

Players get a fast TTL-backed homepage (local profile / Cloudflare D1) with dense UI polish; login unlocks /home without blocking on every OpenDota refresh.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/frontend/router.js

@@ -4,7 +4,7 @@
  * Path-based router for the Climperor web site (web/frontend).
  *
  * Synchronizes the browser URL with app state across these dimensions:
- *   - page: heroes | rankings | matches | streamers | trends | mechanics | items | patches | players
+ *   - page: home | heroes | rankings | matches | streamers | trends | mechanics | items | patches | players
  *   - hero: selected hero key + detail sub-tab
  *     (skills|core|fears|trends|matchups|matches|streamers|patches; legacy stats → trends)
  *   - rankings: Immortal leaderboard region
@@ -12,6 +12,8 @@
  *   - matches: star-player recent matches (pro_matches)
  *     /matches[/account_id][?origin=pro|china][&page=N]
  *     (default origin all omitted; page=1 omitted)
+ *   - home: logged-in Steam self homepage (players view + auth.account_id)
+ *     /home[/{match_id}]
  *   - players: PC post-match player home + match detail (local/OSS JSON)
  *     /players/{account_id}[/{match_id}]
  *   - streamers: curated streamer directory
@@ -41,6 +43,7 @@
 
 const ROUTE_DEFAULT = "/heroes";
 const VALID_PAGES = [
+  "home",
   "heroes",
   "rankings",
   "matches",
@@ -161,6 +164,11 @@ function parseHash(hashOrPath) {
     if (segs[1] && /^\d+$/.test(segs[1])) {
       out.matchesPlayerId = segs[1];
     }
+  } else if (page === "home") {
+    // Logged-in self homepage; optional match detail: /home/{match_id}
+    if (segs[1] && /^\d+$/.test(segs[1])) {
+      out.playerMatchId = segs[1];
+    }
   } else if (page === "players") {
     if (segs[1] && /^\d+$/.test(segs[1])) {
       out.playerAccountId = segs[1];
@@ -240,6 +248,10 @@ function serializeHash(state) {
     if (state.matchesPlayerId) {
       path += "/" + encodeURIComponent(String(state.matchesPlayerId));
     }
+  } else if (state.page === "home") {
+    if (state.playerMatchId) {
+      path += "/" + encodeURIComponent(String(state.playerMatchId));
+    }
   } else if (state.page === "players") {
     if (state.playerAccountId) {
       path += "/" + encodeURIComponent(String(state.playerAccountId));