feat(KB-337): execute KB-335 — rename environment variables KB_* to FUSION_*

.changeset/rename-environment-variables.md

@@ -13,6 +13,7 @@ BREAKING CHANGE: All environment variables have been renamed:
 - KB_BADGE_PUBSUB_REDIS_URL → FUSION_BADGE_PUBSUB_REDIS_URL
 - KB_BADGE_PUBSUB_CHANNEL → FUSION_BADGE_PUBSUB_CHANNEL
 - KB_DEBUG_PLANNING_ROUTES → FUSION_DEBUG_PLANNING_ROUTES
+- KB_DEBUG_AI → FUSION_DEBUG_AI
 - KB_RUNTIME_DIR → FUSION_RUNTIME_DIR
 - KB_NATIVE_ASSETS_PATH → FUSION_NATIVE_ASSETS_PATH
 - KB_FAKE_BUNFS_ROOT → FUSION_FAKE_BUNFS_ROOT

packages/dashboard/src/routes.ts

@@ -4978,7 +4978,7 @@ export function createApiRoutes(store: TaskStore, options?: ServerOptions): Rout
       } = await import("@fusion/core");
 
       // Debug logging
-      if (process.env.KB_DEBUG_AI) {
+      if (process.env.FUSION_DEBUG_AI) {
         console.log(`[ai-summarize] Request from ${ip}, description length: ${description?.length || 0}`);
       }
 
@@ -5022,7 +5022,7 @@ export function createApiRoutes(store: TaskStore, options?: ServerOptions): Rout
         (settings.planningProvider && settings.planningModelId ? settings.planningModelId : undefined) ||
         (settings.defaultProvider && settings.defaultModelId ? settings.defaultModelId : undefined);
 
-      if (process.env.KB_DEBUG_AI) {
+      if (process.env.FUSION_DEBUG_AI) {
         console.log(`[ai-summarize] Resolved model: ${resolvedProvider || "auto"}/${resolvedModelId || "auto"}`);
       }