feat: integrate initiative tracker into campaign view

Wires up InitiativeTracker and CombatStartModal into CampaignView with socket event handlers, a DM-only Combat button, two-column layout with combat sidebar, and responsive CSS.

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

client/src/pages/CampaignView.module.css

@@ -165,3 +165,54 @@
   font-style: italic;
   grid-column: 1 / -1;
 }
+
+/* ── Combat layout ── */
+
+.content {
+  display: block;
+}
+
+.content.withCombat {
+  display: flex;
+  gap: 0;
+  align-items: flex-start;
+}
+
+.combatSidebar {
+  width: 190px;
+  flex-shrink: 0;
+  border-right: 1px solid rgba(var(--gold-rgb), 0.15);
+  padding-right: 0.5rem;
+  margin-right: 0.75rem;
+  min-height: 300px;
+  position: sticky;
+  top: 0;
+}
+
+.content.withCombat .grid {
+  flex: 1;
+  min-width: 0;
+}
+
+.addBtnActive {
+  background: rgba(var(--gold-rgb), 0.15) !important;
+  border: 1px solid rgba(var(--gold-rgb), 0.5) !important;
+  color: var(--gold) !important;
+}
+
+@media (max-width: 768px) {
+  .content.withCombat {
+    flex-direction: column;
+  }
+
+  .combatSidebar {
+    width: 100%;
+    border-right: none;
+    border-bottom: 1px solid rgba(var(--gold-rgb), 0.15);
+    padding-right: 0;
+    margin-right: 0;
+    padding-bottom: 0.5rem;
+    margin-bottom: 0.75rem;
+    position: static;
+  }
+}

client/src/pages/CampaignView.tsx

@@ -18,7 +18,9 @@ import {
   undoRoll,
 } from "../api";
 import { useAuth } from "../context/AuthContext";
-import type { Character, Gear, Talent, GameItem, RollResult } from "../types";
+import type { Character, Gear, Talent, GameItem, RollResult, CombatState } from "../types.js";
+import InitiativeTracker from "../components/InitiativeTracker.js";
+import CombatStartModal from "../components/CombatStartModal.js";
 import CharacterCard from "../components/CharacterCard";
 import CharacterDetail from "../components/CharacterDetail";
 import RollLog from "../components/RollLog";
@@ -54,6 +56,8 @@ export default function CampaignView() {
   const pendingRollRef = useRef<RollResult | null>(null);
   const [atmosphere, setAtmosphere] = useState<AtmosphereState>(defaultAtmosphere);
   const [focusSpells, setFocusSpells] = useState<Map<number, string>>(new Map());
+  const [combats, setCombats] = useState<CombatState[]>([]);
+  const [showCombatStart, setShowCombatStart] = useState(false);
 
   function handleAtmosphereChange(next: AtmosphereState) {
     setAtmosphere(next);
@@ -70,6 +74,7 @@ export default function CampaignView() {
       if (c) setCampaignName(c.name);
     });
     socket.emit("join-campaign", String(campaignId));
+    socket.emit("initiative:request-state", campaignId);
     return () => {
       socket.emit("leave-campaign", String(campaignId));
     };
@@ -256,6 +261,14 @@ export default function CampaignView() {
       void characterId;
     }
 
+    function onInitiativeState(data: CombatState[]) {
+      setCombats(data);
+    }
+
+    function onInitiativeUpdated(data: CombatState[]) {
+      setCombats(data);
+    }
+
     socket.on("character:created", onCharacterCreated);
     socket.on("character:updated", onCharacterUpdated);
     socket.on("character:deleted", onCharacterDeleted);
@@ -268,6 +281,8 @@ export default function CampaignView() {
     socket.on("atmosphere:update", onAtmosphereUpdate);
     socket.on("roll:undone", onRollUndone);
     socket.on("character:rested", onCharacterRested);
+    socket.on("initiative:state", onInitiativeState);
+    socket.on("initiative:updated", onInitiativeUpdated);
 
     return () => {
       socket.off("character:created", onCharacterCreated);
@@ -282,6 +297,8 @@ export default function CampaignView() {
       socket.off("atmosphere:update", onAtmosphereUpdate);
       socket.off("roll:undone", onRollUndone);
       socket.off("character:rested", onCharacterRested);
+      socket.off("initiative:state", onInitiativeState);
+      socket.off("initiative:updated", onInitiativeUpdated);
     };
   }, []);
 
@@ -387,6 +404,14 @@ export default function CampaignView() {
                 onAtmosphereChange={handleAtmosphereChange}
               />
             )}
+            {role === "dm" && (
+              <button
+                className={`${styles.addBtn} ${combats.length > 0 ? styles.addBtnActive : ""}`}
+                onClick={() => setShowCombatStart(true)}
+              >
+                ⚔ Combat
+              </button>
+            )}
             {role === "dm" && (
               <button className={styles.addBtn} onClick={handleInvite}>
                 Invite Player
@@ -401,6 +426,18 @@ export default function CampaignView() {
           </div>
         </div>
 
+        <div className={`${styles.content} ${combats.length > 0 ? styles.withCombat : ""}`}>
+          {combats.length > 0 && (
+            <div className={styles.combatSidebar}>
+              <InitiativeTracker
+                combat={combats[0]}
+                characters={characters}
+                isDM={role === "dm"}
+                currentUserId={user?.userId ?? null}
+                campaignId={campaignId}
+              />
+            </div>
+          )}
           <div className={styles.grid}>
             {characters.length === 0 && (
               <p className={styles.empty}>
@@ -419,6 +456,7 @@ export default function CampaignView() {
               />
             ))}
           </div>
+        </div>
 
         {selectedCharacter && (
           <CharacterDetail
@@ -445,6 +483,13 @@ export default function CampaignView() {
             onClose={() => setShowCreate(false)}
           />
         )}
+        {showCombatStart && (
+          <CombatStartModal
+            characters={characters}
+            campaignId={campaignId}
+            onClose={() => setShowCombatStart(false)}
+          />
+        )}
       </div>
       <RollLog campaignId={campaignId} rolls={rolls} freshIds={freshIds} onUndoRoll={handleUndoRoll} />
       <DiceTray roll={diceRoll} onAnimationComplete={handleDiceComplete} />