First pass at full refactor to 2.0 design

Restructures the game around the cyclical run loop from Game Design Doc V2:
5 waves = a cycle, 3 cycles = a phase, each phase ends in a boss.

- New TD.Gameplay.Waves: WaveGroup / PhaseDefinition / RunDefinition author the
  run as draggable weighted pools; RunState owns phase/cycle position, the drawn
  wave slots, and the per-slot enemy buff sets. WaveManager's flat wave array is
  gone -- it now only runs the encounter RunState points at.
- New TD.Gameplay.EnemyUpgrades: the post-wave enemy-buff vote, with public
  live-replicated ballots so the HUD can show who voted for what.
- Inter-wave flow is now strictly sequential: draft -> vote -> build, each stage
  ending early once every player has acted.
- Enemy abilities inverted from per-instance random rolls to deterministic,
  stacking per-wave-slot sets. Six cards ship: Split (reworked), Flight, Blink,
  No Bounty, Gold Theft, Double Up.
- Tower upgrades are a two-step tree: a draft pick unlocks a node, gold converts
  an already-placed tower in place.
- Boss encounters flag their enemies and drive a boss HP bar.
- Player cap reduced to 3 via MatchRules.MaxPlayers.
- GoldConfig is now keyed by global encounter number rather than wave index.

Compiles clean; NOT yet verified in-engine. Editor wiring still required --
see Docs/2.0_Setup_Checklist.md.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assets/_Project/Scripts/Gameplay/Draft/DraftService.cs

@@ -82,7 +82,7 @@ namespace TD.Gameplay.Draft
             draft.ServerOffer(resultScratch);
         }
 
-        /// <summary>Server-only: auto-resolve any unpicked drafts (called at prep end).</summary>
+        /// <summary>Server-only: auto-resolve any unpicked drafts (called when the timer expires).</summary>
         public void ServerAutoResolveAll()
         {
             if (!IsServer) return;
@@ -90,6 +90,29 @@ namespace TD.Gameplay.Draft
                 PlayerDraft.GetForClient(pms.OwnerClientId)?.ServerAutoResolve();
         }
 
+        /// <summary>
+        /// True once every connected player has resolved their draft. The inter-wave step polls
+        /// this to end the draft timer early instead of making everyone wait out the clock.
+        /// </summary>
+        /// <remarks>
+        /// Returns false when nobody is connected, so an empty lobby can't trip the barrier and
+        /// race the sequence forward.
+        /// </remarks>
+        public static bool AllPlayersPicked
+        {
+            get
+            {
+                bool any = false;
+                foreach (var pms in PlayerMatchState.AllPlayers)
+                {
+                    any = true;
+                    var draft = PlayerDraft.GetForClient(pms.OwnerClientId);
+                    if (draft != null && draft.HasActiveDraft) return false;
+                }
+                return any;
+            }
+        }
+
         // ----- Generation -------------------------------------------------
 
         // Weighted random draw WITHOUT replacement: picks `count` distinct option ids from