chore(release): bump version to 1.5.0

Minor, not patch: this cycle added the Codex config panel, made Claude
Code's MCP surface editable, and added the project-memory route both
panels use — new surfaces, no breaking change.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "agenthub",
-  "version": "1.4.6",
+  "version": "1.5.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "agenthub",
-      "version": "1.4.6",
+      "version": "1.5.0",
       "hasInstallScript": true,
       "license": "UNLICENSED",
       "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "agenthub",
-  "version": "1.4.6",
+  "version": "1.5.0",
   "bin": {
     "agenthub": "bin/agenthub.js"
   },