Text-only bottom bar, re-extract action, fix YouTube thumbnails, verify Stash creds before saving

- Bottom bar: Previous/Keep unread/Next are now plain text labels, no icons
- Add "Re-download and re-extract" to the overflow menu (ReaderScreen and
  LinkReaderScreen) to force a fresh fetch + Readability pass on demand,
  overwriting whatever's cached
- Fix a real compile bug in the previous commit's reader-mode-off handler
  (passed null into a non-null setExtractedContent) via a proper
  clearExtractedContent() DAO query
- YouTube embeds: fixed the broken-image-glyph bug two ways -- (1) an
  11-char video-ID regex was accidentally matching a playlist embed's
  literal "videoseries" placeholder path, building a thumbnail URL for a
  video that doesn't exist, and (2) Readability's link-density cleanup was
  discarding the replacement entirely (a bare <a><img></a> reads as an
  ad/share unit). Restructured as a <figure>/<figcaption> pair -- the same
  shape a normal captioned photo takes -- confirmed live this survives
  extraction intact
- Stash settings: API key field is now a password field with a show/hide
  toggle, and "Verify and save" makes a real authenticated request before
  persisting anything, showing why it failed instead of silently saving
  bad credentials

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EZ7ikw2ukGJFTHE3bJS7zL

1 files changed, 24 insertions, 0 deletions

diff --git a/app/src/main/java/org/terst/feedreader/ui/LinkReaderScreen.kt b/app/src/main/java/org/terst/feedreader/ui/LinkReaderScreen.kt
index c001b69..c29a585 100644
--- a/app/src/main/java/org/terst/feedreader/ui/LinkReaderScreen.kt
+++ b/app/src/main/java/org/terst/feedreader/ui/LinkReaderScreen.kt
@@ -80,6 +80,7 @@ fun LinkReaderScreen(url: String, onBack: () -> Unit, onOpenLink: (String) -> Un
     var extractionFailed by remember(url) { mutableStateOf(false) }
     var isReaderMode by remember(url) { mutableStateOf(true) }
     var isSaving by remember(url) { mutableStateOf(false) }
+    var isReextracting by remember(url) { mutableStateOf(false) }
     var moreMenuExpanded by remember(url) { mutableStateOf(false) }
     var longPressedLink by remember(url) { mutableStateOf<String?>(null) }
 
@@ -194,6 +195,29 @@ fun LinkReaderScreen(url: String, onBack: () -> Unit, onOpenLink: (String) -> Un
                     }
                     DropdownMenu(expanded = moreMenuExpanded, onDismissRequest = { moreMenuExpanded = false }) {
                         DropdownMenuItem(
+                            enabled = !isReextracting,
+                            text = { Text("Re-download and re-extract") },
+                            onClick = {
+                                moreMenuExpanded = false
+                                scope.launch {
+                                    isReextracting = true
+                                    val extracted = ReaderExtractor.extract(context, url)
+                                    isReextracting = false
+                                    val content = extracted?.content
+                                    if (content != null) {
+                                        extractedTitle = extracted.title
+                                        extractedContent = content
+                                        extractionFailed = false
+                                        isReaderMode = true
+                                        db.articleDao().setExtractedContent(articleId, content)
+                                        snackbarHostState.showSnackbar("Re-extracted")
+                                    } else {
+                                        snackbarHostState.showSnackbar("Re-extraction failed")
+                                    }
+                                }
+                            }
+                        )
+                        DropdownMenuItem(
                             text = { Text("Find another source") },
                             onClick = {
                                 moreMenuExpanded = false