Revert "build: upgrade @azure/msal-browser to v4"

This reverts commit 653d1dc.

Author: csm-thu

package.json

@@ -21,7 +21,7 @@
   },
   "homepage": "https://github.com/Cosmo-Tech/webapp-component-azure#readme",
   "dependencies": {
-    "@azure/msal-browser": "^4.23.0"
+    "@azure/msal-browser": "^3.26.1"
   },
   "devDependencies": {
     "@babel/core": "^7.28.4",

yarn.lock

@@ -12,19 +12,19 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@azure/msal-browser@npm:^4.23.0":
-  version: 4.23.0
-  resolution: "@azure/msal-browser@npm:4.23.0"
+"@azure/msal-browser@npm:^3.26.1":
+  version: 3.26.1
+  resolution: "@azure/msal-browser@npm:3.26.1"
   dependencies:
-    "@azure/msal-common": "npm:15.12.0"
-  checksum: 10c0/207f7d780ae652cc19b1cd64ce625e6ecd58c1e7f4f2cc3e14ca799e0bdcff96486c20528d283ad49b1e136ed10193bccf6bcc30d952e0be32f4f09216e12b03
+    "@azure/msal-common": "npm:14.15.0"
+  checksum: 10c0/70f5062969495c6c03bb39f6703e2a02727863758cda5528b4549387f9fa6d54c3b67e790d0fca8487606fdc7339523f9290d6681250dfab87488f98a780071e
   languageName: node
   linkType: hard
 
-"@azure/msal-common@npm:15.12.0":
-  version: 15.12.0
-  resolution: "@azure/msal-common@npm:15.12.0"
-  checksum: 10c0/0e41bfd7f9baa76014d9de254d7136c664fcb9cfbc0d1017140d8b460541911fe9d3bb13a3ec8c11af02df6e0cc2794d2a1d3a91243bc476e7d2e67b0bf5007c
+"@azure/msal-common@npm:14.15.0":
+  version: 14.15.0
+  resolution: "@azure/msal-common@npm:14.15.0"
+  checksum: 10c0/a7af0fdd9477055c261ec065f3479b1511ccfc80723029a51737216777f11a536df3b53cf1ec80dd09dfc10e29f7a32c63c1e6b28bf3dcc17dad06e2a54cf43f
   languageName: node
   linkType: hard
 
@@ -1276,7 +1276,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@cosmotech/azure@workspace:."
   dependencies:
-    "@azure/msal-browser": "npm:^4.23.0"
+    "@azure/msal-browser": "npm:^3.26.1"
     "@babel/core": "npm:^7.28.4"
     "@babel/preset-env": "npm:^7.28.3"
     "@babel/preset-react": "npm:^7.27.1"