fix: stop labeling bot-check videos as members-only

src/main/kotlin/dev/typetype/server/services/ExtractionErrorSanitizer.kt

@@ -2,22 +2,31 @@ package dev.typetype.server.services
 
 object ExtractionErrorSanitizer {
     private const val MEMBERS_ONLY = "This video is only available for members"
+    private const val SIGN_IN_REQUIRED = "Sign in is required to verify access to this video"
 
     fun sanitize(raw: String?): String? {
         if (raw.isNullOrBlank()) return null
         val compact = raw.replace('\n', ' ').replace('\r', ' ').trim()
         if (compact.isBlank()) return null
         if (isMembersOnlyPrompt(compact)) return MEMBERS_ONLY
+        if (isSignInVerificationPrompt(compact)) return SIGN_IN_REQUIRED
         return compact
     }
 
     private fun isMembersOnlyPrompt(message: String): Boolean {
         val lowered = message.lowercase()
         if ("members" in lowered && "only available" in lowered) return true
+        if ("join this channel" in lowered && "members-only" in lowered) return true
+        return false
+    }
+
+    private fun isSignInVerificationPrompt(message: String): Boolean {
+        val lowered = message.lowercase()
         if ("sign in to confirm" in lowered) return true
         if ("not a bot" in lowered) return true
         if ("qinisekisa ukuthi" in lowered) return true
         if ("awuyona i-bot" in lowered) return true
+        if ("ngena ngemvume" in lowered) return true
         return false
     }
 }

src/test/kotlin/dev/typetype/server/ExtractionErrorSanitizerTest.kt

@@ -6,10 +6,10 @@ import org.junit.jupiter.api.Test
 
 class ExtractionErrorSanitizerTest {
     @Test
-    fun `normalizes bot prompt with mixed locales`() {
+    fun `normalizes bot prompt with mixed locales to sign-in verification message`() {
         val raw = "Ngena ngemvume ukuze uqinisekise ukuthi awuyona i-bot"
         assertEquals(
-            "This video is only available for members",
+            "Sign in is required to verify access to this video",
             ExtractionErrorSanitizer.sanitize(raw),
         )
     }
@@ -21,8 +21,14 @@ class ExtractionErrorSanitizerTest {
     }
 
     @Test
-    fun `normalizes login confirm prompt to members only message`() {
+    fun `normalizes login confirm prompt to sign-in verification message`() {
         val raw = "Sign in to confirm you are not a bot"
+        assertEquals("Sign in is required to verify access to this video", ExtractionErrorSanitizer.sanitize(raw))
+    }
+
+    @Test
+    fun `keeps members-only paywall prompt as members message`() {
+        val raw = "Join this channel to get access to members-only content like this video"
         assertEquals("This video is only available for members", ExtractionErrorSanitizer.sanitize(raw))
     }