feat(content): stub story graph with A/B branch and route-gated actions

src/content/story.ts

@@ -1,7 +1,46 @@
 export const storyNodeDefs = [
   {
     id: 'boot_intro',
-    prose: 'Placeholder boot.',
+    prose: '[Stub] You wake at a crossroads camp. Smoke rises from a cold fire pit.',
     triggers: [{ type: 'boot', targetNodeId: 'boot_intro' }],
   },
+  {
+    id: 'fork_choice',
+    prose: '[Stub] Tracks split. The high road climbs; the low road bends toward the river.',
+    choices: [
+      {
+        id: 'pick_a',
+        label: 'Take the high road',
+        outcomes: [
+          { type: 'setFlag', flag: 'route_a' },
+          { type: 'grantResource', resourceId: 'supplies', amount: 3 },
+          { type: 'grantResource', resourceId: 'coin', amount: 2 },
+        ],
+        targetNodeId: 'route_a_beat',
+      },
+      {
+        id: 'pick_b',
+        label: 'Follow the river',
+        outcomes: [
+          { type: 'setFlag', flag: 'route_b' },
+          { type: 'grantResource', resourceId: 'coin', amount: 2 },
+        ],
+        targetNodeId: 'route_b_beat',
+      },
+    ],
+  },
+  { id: 'route_a_beat', prose: '[Stub] Route A: high ground, extra supplies.' },
+  { id: 'route_b_beat', prose: '[Stub] Route B: river trade, extra coin.' },
+  {
+    id: 'threshold_listener',
+    prose: ' ',
+    triggers: [{ type: 'minResources', minResources: { coin: 3 }, targetNodeId: 'merchant_flavor' }],
+  },
+  { id: 'merchant_flavor', prose: '[Stub] A merchant remembers your face.' },
+  {
+    id: 'scout_listener',
+    prose: ' ',
+    triggers: [{ type: 'actionComplete', actionId: 'scout_path', targetNodeId: 'scout_aftermath' }],
+  },
+  { id: 'scout_aftermath', prose: '[Stub] The path is mapped.' },
 ];