feat(admin): overview dashboard sections + system temperature/load sensors (0.85.0) (#11)

backend/src/repo/page_analysis.rs

@@ -159,6 +159,24 @@ pub async fn manga_coverage(
     Ok((rows, total))
 }
 
+/// Library-wide analysis coverage `(analyzed_pages, total_pages)` for the
+/// admin overview. `total_pages` is every page; `analyzed_pages` are those
+/// with a `done` analysis row.
+pub async fn library_coverage(pool: &PgPool) -> AppResult<(i64, i64)> {
+    let row: (i64, i64) = sqlx::query_as(
+        r#"
+        SELECT
+            count(*) FILTER (WHERE pa.status = 'done')::bigint AS analyzed,
+            count(p.id)::bigint                                AS total
+          FROM pages p
+          LEFT JOIN page_analysis pa ON pa.page_id = p.id
+        "#,
+    )
+    .fetch_one(pool)
+    .await?;
+    Ok(row)
+}
+
 /// Per-chapter analysis coverage for one manga, ordered by chapter number.
 pub async fn chapter_coverage(
     pool: &PgPool,