Add a browser-facing Miniflux URL and link feeds to their entries page

The pipeline talks to Miniflux on loopback, so links meant for a person
need their own base. `[miniflux].public_url` defaults to base_url, and
`feed_url` builds the web UI's `/feed/{id}/entries` page, which the feeds
dashboard now uses instead of the non-existent `/feeds/{id}` route.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YWmCpUojfHXhSZ2129Z7Nv

src/web/dashboard/feeds.rs

@@ -88,7 +88,7 @@ struct FeedRow {
     /// timestamps sit in the cell's tooltip.
     seen: String,
     decided_at: String,
-    /// `{miniflux.base_url}/feeds/{id}` for a candidate we subscribed to.
+    /// The Miniflux web UI page for a candidate we subscribed to.
     miniflux_href: Option<String>,
 }
 
@@ -157,10 +157,9 @@ async fn index(
         None => load_evidence(db, &config, &candidates).await?,
     };
     let titles = article_titles(db, &candidates).await?;
-    let base_url = config.miniflux.base_url.trim_end_matches('/').to_string();
     let rows: Vec<FeedRow> = candidates
         .iter()
-        .map(|candidate| row(candidate, &evidence, &titles, &config, &base_url))
+        .map(|candidate| row(candidate, &evidence, &titles, &config))
         .collect();
 
     // The picker is only ever used by the candidate view, so only it pays for
@@ -381,7 +380,6 @@ fn row(
     evidence: &HashMap<ArticleId, ArticleEvidence>,
     titles: &HashMap<ArticleId, String>,
     config: &Config,
-    base_url: &str,
 ) -> FeedRow {
     let mut scored = evidence_of(candidate, evidence);
     let score = discovery::score(&scored);
@@ -433,7 +431,7 @@ fn row(
         decided_at: fmt_stored_time(candidate.decided_at.as_deref(), config),
         miniflux_href: candidate
             .miniflux_feed_id
-            .map(|feed_id| format!("{base_url}/feeds/{feed_id}")),
+            .map(|feed_id| config.miniflux.feed_url(feed_id)),
     }
 }
 
@@ -610,7 +608,7 @@ mod tests {
         assert!(body.contains("Added Strong Blog."), "{body}");
         let added =
             response_text(get(&app, "/dashboard/feeds?status=added", Some(&admin)).await).await;
-        assert!(added.contains("/feeds/77"), "{added}");
+        assert!(added.contains("/feed/77/entries"), "{added}");
     }
 
     #[tokio::test]

src/web/dashboard/settings.rs

@@ -218,6 +218,7 @@ pub const RESTART_REQUIRED: &[&str] = &[
 /// Optional keys that `Config::default()` leaves unset (and therefore do not
 /// appear when the defaults are serialized), with the kind they take.
 const OPTIONAL_KEYS: &[(&str, FieldKind)] = &[
+    ("miniflux.public_url", FieldKind::Text),
     ("miniflux.api_key", FieldKind::Secret),
     ("providers.*.api_key", FieldKind::Secret),
     ("providers.*.effort", FieldKind::Text),
@@ -296,6 +297,7 @@ pub const SETTINGS_HELP: &[(&str, &str)] = &[
     ("profile_path", "Hand-maintained reader profile, loaded every run."),
     ("interests_opml", "Scour interests OPML merged with the profile interests."),
     ("miniflux.base_url", "Miniflux root (no /v1)."),
+    ("miniflux.public_url", "Browser-facing Miniflux web UI URL for dashboard links. Defaults to miniflux.base_url."),
     ("miniflux.api_key", "X-Auth-Token for Miniflux. Required; environment only."),
     ("miniflux.page_limit", "Entries per page for GET /v1/entries; Miniflux caps this at 250."),
     ("llm.bulk", "The [providers.*] name that runs triage, deep assessment and every fallback. Empty means no bulk provider (those stages are skipped)."),