feat(guild): controller scaffolding + /guild/info baseline

- 5 common DTOs under Models/Dtos/Common/Guild/ (GuildDetailDto,
  GuildUserBaseDto, GuildMemberInfoDto, ChatUserDto, ChatMessageDto)
- 28 per-endpoint request/response DTOs under Models/Dtos/Guild/ and
  Models/Dtos/GuildChat/ with full [MessagePackObject]/[Key]/
  [JsonPropertyName] attribute mirrors on every property
- GuildController (22 actions): /guild/info returns prod-shape with
  config-backed max_member_num/max_sub_leader_num/usable_stamp_list;
  21 stubs return empty/default DTOs
- GuildChatController (7 stubs), /guild_chat/messages stub returns
  wait_interval=10 per config
- 29 new routing smoke test cases (100 total, all pass)
- GuildWireShape literal-JSON test for GuildInfoResponse (1/1 pass)
- GameConfigurationJsonbTests updated for 17th GuildConfig section
- Total: 1422 tests pass, 0 errors

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

SVSim.UnitTests/RoutingSmokeTests.cs

@@ -146,6 +146,38 @@ public class RoutingSmokeTests
     [TestCase("/rotation_free_battle/finish")]
     [TestCase("/unlimited_free_battle/finish")]
     [TestCase("/free_battle/force_finish")]
+    // Guild endpoints (Task 5)
+    [TestCase("/guild/info")]
+    [TestCase("/guild/create")]
+    [TestCase("/guild/breakup")]
+    [TestCase("/guild/update")]
+    [TestCase("/guild/update_description")]
+    [TestCase("/guild/update_emblem")]
+    [TestCase("/guild/search_guild")]
+    [TestCase("/guild/emblem_list")]
+    [TestCase("/guild/others_info")]
+    [TestCase("/guild/friend_list")]
+    [TestCase("/guild/invite_user_list")]
+    [TestCase("/guild/invited_guild_list")]
+    [TestCase("/guild/invite")]
+    [TestCase("/guild/cancel_invite")]
+    [TestCase("/guild/reject_invite")]
+    [TestCase("/guild/join")]
+    [TestCase("/guild/cancel_join_request")]
+    [TestCase("/guild/join_request_list")]
+    [TestCase("/guild/join_request_accept")]
+    [TestCase("/guild/reject_join_request")]
+    [TestCase("/guild/leave")]
+    [TestCase("/guild/remove")]
+    [TestCase("/guild/change_role")]
+    // GuildChat endpoints (Task 5)
+    [TestCase("/guild_chat/messages")]
+    [TestCase("/guild_chat/post")]
+    [TestCase("/guild_chat/add_deck")]
+    [TestCase("/guild_chat/delete_deck")]
+    [TestCase("/guild_chat/add_replay")]
+    [TestCase("/guild_chat/replay_detail")]
+    [TestCase("/guild_chat/deck_log")]
     public async Task Authenticated_route_resolves(string path)
     {
         using var factory = new TestFactory();