refactor(router): redirect from auth sub-routes

- Simplify auth path redirection logic
- Clarify redirect conditions

Author: fulleni

lib/router/router.dart

@@ -138,16 +138,18 @@ GoRouter createRouter({
         final isLinkingContext =
             currentUri.queryParameters['context'] == 'linking';
 
-        // If an authenticated/anonymous user tries to access the BASE /authentication path
-        // AND it's NOT for account linking, redirect them to the feed.
-        if (currentLocation == authenticationPath && !isLinkingContext) {
+        // If an authenticated/anonymous user is on any authentication-related path,
+        // redirect them to the feed, unless it's the base authentication path
+        // AND it's specifically for account linking.
+        if (currentLocation.startsWith(authenticationPath) &&
+            !(currentLocation == authenticationPath && isLinkingContext)) {
           print(
-            '    Action: $appStatus user trying to access base auth path without linking context. Redirecting to $feedPath',
+            '    Action: $appStatus user trying to access an auth path. Redirecting to $feedPath',
           );
           return feedPath;
         }
 
-        // Allow access to other routes (including auth sub-routes if linking, or any other app route)
+        // Allow access to other routes (only if not an auth path, or if it's the base auth path for linking)
         print(
           '    Action: Allowing navigation to $currentLocation for $appStatus user.',
         );

pubspec.lock

@@ -89,6 +89,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      sha256: "959525d3162f249993882720d52b7e0c833978df229be20702b33d48d91de70f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.4"
   cli_config:
     dependency: transitive
     description:
@@ -97,6 +105,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.2.0"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      sha256: ff6785f7e9e3c38ac98b2fb035701789de90154024a75b6cb926445e83197d1c
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.2"
   clock:
     dependency: transitive
     description:
@@ -270,6 +286,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "9.1.1"
+  flutter_launcher_icons:
+    dependency: "direct main"
+    description:
+      name: flutter_launcher_icons
+      sha256: "10f13781741a2e3972126fae08393d3c4e01fa4cd7473326b94b72cf594195e7"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.14.4"
   flutter_localizations:
     dependency: "direct main"
     description: flutter
@@ -356,7 +380,7 @@ packages:
     description:
       path: "."
       ref: HEAD
-      resolved-ref: "028ebfa29ebc8f95c2da30fee68566723d1e6897"
+      resolved-ref: "3a8dc5ff81c59805fa59996517eb0fdf136a0b67"
       url: "https://github.com/headlines-toolkit/ht-auth-inmemory"
     source: git
     version: "0.0.0"
@@ -501,10 +525,18 @@ packages:
     dependency: transitive
     description:
       name: js
-      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
+      sha256: f2c445dce49627136094980615a031419f7f3eb393237e4ecd97ac15dea343f3
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.7"
+  js_interop:
+    dependency: "direct main"
+    description:
+      name: js_interop
+      sha256: "7ec859c296958ccea34dc770504bd3ff4ae52fdd9e7eeb2bacc7081ad476a1f5"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.2"
+    version: "0.0.1"
   json_annotation:
     dependency: transitive
     description: