feat(analysis): admin coverage + per-page inspection API

Read-only admin endpoints (admin-gated, not analysis-enabled-gated) for
the dashboard's coverage overview and page-detail view:

- GET /v1/admin/analysis/mangas?search= — paginated per-manga coverage
  (analyzed/total pages; only mangas with pages).
- GET /v1/admin/analysis/mangas/:id/chapters — per-chapter coverage.
- GET /v1/admin/analysis/chapters/:id/pages — per-page status grid
  (done | failed | queued | none).
- GET /v1/admin/analysis/pages/:id — full result (status, is_nsfw, scene,
  model, analyzed_at, error, OCR lines with kind, tags, content warnings);
  "none" for an existing-but-unanalyzed page, 404 for a missing page.

repo::page_analysis gains manga_coverage / chapter_coverage /
chapter_page_status / page_detail; domain adds the matching row types.

Tests: coverage counts (manga + chapter), per-page status, full detail +
unanalyzed "none" + 404, non-admin 403.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

backend/Cargo.lock

@@ -1517,7 +1517,7 @@ checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
 
 [[package]]
 name = "mangalord"
-version = "0.74.1"
+version = "0.75.0"
 dependencies = [
  "anyhow",
  "argon2",

backend/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mangalord"
-version = "0.74.1"
+version = "0.75.0"
 edition = "2021"
 default-run = "mangalord"
 

backend/src/api/admin/analysis.rs

@@ -9,15 +9,19 @@
 //! * `POST /admin/pages/:id/analyze` — force re-analysis of a single page
 //!   (re-runs even if already `done`).
 
-use axum::extract::{Path, State};
+use axum::extract::{Path, Query, State};
-use axum::routing::post;
+use axum::routing::{get, post};
 use axum::{Json, Router};
 use serde::{Deserialize, Serialize};
 use serde_json::json;
 use uuid::Uuid;
 
+use crate::api::pagination::PagedResponse;
 use crate::app::AppState;
 use crate::auth::extractor::RequireAdmin;
+use crate::domain::page_analysis::{
+    ChapterCoverage, MangaCoverage, PageAnalysisDetail, PageStatusItem,
+};
 use crate::error::{AppError, AppResult};
 use crate::repo;
 
@@ -25,6 +29,88 @@ pub fn routes() -> Router<AppState> {
     Router::new()
         .route("/admin/analysis/reenqueue", post(reenqueue))
         .route("/admin/pages/:id/analyze", post(analyze_page))
+        // Coverage / inspection (admin-gated, but NOT analysis-enabled-gated
+        // — an operator can browse coverage with the worker off).
+        .route("/admin/analysis/mangas", get(coverage_mangas))
+        .route("/admin/analysis/mangas/:id/chapters", get(coverage_chapters))
+        .route("/admin/analysis/chapters/:id/pages", get(chapter_pages))
+        .route("/admin/analysis/pages/:id", get(page_detail))
+}
+
+#[derive(Debug, Deserialize)]
+pub struct CoverageParams {
+    #[serde(default)]
+    pub search: Option<String>,
+    #[serde(default = "default_coverage_limit")]
+    pub limit: i64,
+    #[serde(default)]
+    pub offset: i64,
+}
+
+fn default_coverage_limit() -> i64 {
+    25
+}
+
+async fn coverage_mangas(
+    State(state): State<AppState>,
+    _admin: RequireAdmin,
+    Query(params): Query<CoverageParams>,
+) -> AppResult<Json<PagedResponse<MangaCoverage>>> {
+    let limit = params.limit.clamp(1, 100);
+    let offset = params.offset.max(0);
+    let search = params
+        .search
+        .as_deref()
+        .map(str::trim)
+        .filter(|s| !s.is_empty());
+    let (items, total) =
+        repo::page_analysis::manga_coverage(&state.db, search, limit, offset).await?;
+    Ok(Json(PagedResponse::with_total(items, limit, offset, total)))
+}
+
+async fn coverage_chapters(
+    State(state): State<AppState>,
+    _admin: RequireAdmin,
+    Path(manga_id): Path<Uuid>,
+) -> AppResult<Json<ItemsResponse<ChapterCoverage>>> {
+    if !repo::manga::exists(&state.db, manga_id).await? {
+        return Err(AppError::NotFound);
+    }
+    let items = repo::page_analysis::chapter_coverage(&state.db, manga_id).await?;
+    Ok(Json(ItemsResponse { items }))
+}
+
+async fn chapter_pages(
+    State(state): State<AppState>,
+    _admin: RequireAdmin,
+    Path(chapter_id): Path<Uuid>,
+) -> AppResult<Json<ItemsResponse<PageStatusItem>>> {
+    let exists: bool =
+        sqlx::query_scalar("SELECT EXISTS(SELECT 1 FROM chapters WHERE id = $1)")
+            .bind(chapter_id)
+            .fetch_one(&state.db)
+            .await?;
+    if !exists {
+        return Err(AppError::NotFound);
+    }
+    let items = repo::page_analysis::chapter_page_status(&state.db, chapter_id).await?;
+    Ok(Json(ItemsResponse { items }))
+}
+
+async fn page_detail(
+    State(state): State<AppState>,
+    _admin: RequireAdmin,
+    Path(page_id): Path<Uuid>,
+) -> AppResult<Json<PageAnalysisDetail>> {
+    let detail = repo::page_analysis::page_detail(&state.db, page_id)
+        .await?
+        .ok_or(AppError::NotFound)?;
+    Ok(Json(detail))
+}
+
+#[derive(Debug, Serialize)]
+struct ItemsResponse<T> {
+    items: Vec<T>,
 }
 
 #[derive(Debug, Deserialize)]

backend/src/domain/page_analysis.rs

@@ -128,6 +128,61 @@ pub struct PageSearchItem {
     pub rank: f32,
 }
 
+/// Analysis coverage for one manga (admin overview): how many of its pages
+/// have a completed analysis vs. how many exist.
+#[derive(Debug, Clone, Serialize, FromRow)]
+pub struct MangaCoverage {
+    pub manga_id: Uuid,
+    pub title: String,
+    pub total_pages: i64,
+    pub analyzed_pages: i64,
+}
+
+/// Analysis coverage for one chapter.
+#[derive(Debug, Clone, Serialize, FromRow)]
+pub struct ChapterCoverage {
+    pub chapter_id: Uuid,
+    pub number: i32,
+    pub title: Option<String>,
+    pub total_pages: i64,
+    pub analyzed_pages: i64,
+}
+
+/// Per-page analysis status for a chapter's page grid. `status` is one of
+/// `done` | `failed` | `queued` (a pending/running job) | `none`.
+#[derive(Debug, Clone, Serialize, FromRow)]
+pub struct PageStatusItem {
+    pub page_id: Uuid,
+    pub page_number: i32,
+    pub status: String,
+}
+
+/// One OCR line in the page-detail view.
+#[derive(Debug, Clone, Serialize, FromRow)]
+pub struct OcrLine {
+    pub kind: OcrKind,
+    pub text: String,
+}
+
+/// Full analysis result for one page, for the admin detail modal. `status`
+/// is `done` | `failed` | `none` (no analysis row yet).
+#[derive(Debug, Clone, Serialize)]
+pub struct PageAnalysisDetail {
+    pub page_id: Uuid,
+    pub page_number: i32,
+    pub chapter_id: Uuid,
+    pub manga_id: Uuid,
+    pub status: String,
+    pub is_nsfw: bool,
+    pub scene_description: Option<String>,
+    pub model: Option<String>,
+    pub error: Option<String>,
+    pub analyzed_at: Option<DateTime<Utc>>,
+    pub ocr: Vec<OcrLine>,
+    pub tags: Vec<String>,
+    pub content_warnings: Vec<ContentWarning>,
+}
+
 /// One persisted `page_analysis` row.
 #[derive(Debug, Clone, Serialize, FromRow)]
 pub struct PageAnalysis {

backend/src/repo/page_analysis.rs

@@ -16,7 +16,8 @@ use uuid::Uuid;
 
 use crate::crawler::jobs::{self, JobPayload};
 use crate::domain::page_analysis::{
-    ContentWarning, OcrKind, PageAnalysis, PageSearchItem, VisionAnalysis,
+    ChapterCoverage, ContentWarning, MangaCoverage, OcrKind, OcrLine, PageAnalysis,
+    PageAnalysisDetail, PageSearchItem, PageStatusItem, VisionAnalysis,
 };
 use crate::error::AppResult;
 
@@ -107,6 +108,173 @@ pub async fn enqueue_pages(
     Ok(query.execute(pool).await?.rows_affected())
 }
 
+/// Per-manga analysis coverage for the admin overview. Only mangas that
+/// have at least one page appear (nothing to analyze otherwise). `search`
+/// filters by title (case-insensitive substring). Ordered by title.
+/// Returns the page plus the total matching-manga count for pagination.
+pub async fn manga_coverage(
+    pool: &PgPool,
+    search: Option<&str>,
+    limit: i64,
+    offset: i64,
+) -> AppResult<(Vec<MangaCoverage>, i64)> {
+    let rows = sqlx::query_as::<_, MangaCoverage>(
+        r#"
+        SELECT m.id AS manga_id, m.title,
+               count(p.id)                                  AS total_pages,
+               count(*) FILTER (WHERE pa.status = 'done')   AS analyzed_pages
+          FROM mangas m
+          JOIN chapters c ON c.manga_id = m.id
+          JOIN pages p    ON p.chapter_id = c.id
+          LEFT JOIN page_analysis pa ON pa.page_id = p.id
+         WHERE ($1::text IS NULL OR m.title ILIKE '%' || $1 || '%')
+         GROUP BY m.id, m.title
+         ORDER BY lower(m.title), m.id
+         LIMIT $2 OFFSET $3
+        "#,
+    )
+    .bind(search)
+    .bind(limit)
+    .bind(offset)
+    .fetch_all(pool)
+    .await?;
+
+    let (total,): (i64,) = sqlx::query_as(
+        r#"
+        SELECT count(*) FROM (
+            SELECT m.id
+              FROM mangas m
+              JOIN chapters c ON c.manga_id = m.id
+              JOIN pages p    ON p.chapter_id = c.id
+             WHERE ($1::text IS NULL OR m.title ILIKE '%' || $1 || '%')
+             GROUP BY m.id
+        ) x
+        "#,
+    )
+    .bind(search)
+    .fetch_one(pool)
+    .await?;
+    Ok((rows, total))
+}
+
+/// Per-chapter analysis coverage for one manga, ordered by chapter number.
+pub async fn chapter_coverage(
+    pool: &PgPool,
+    manga_id: uuid::Uuid,
+) -> AppResult<Vec<ChapterCoverage>> {
+    let rows = sqlx::query_as::<_, ChapterCoverage>(
+        r#"
+        SELECT c.id AS chapter_id, c.number, c.title,
+               count(p.id)                                AS total_pages,
+               count(*) FILTER (WHERE pa.status = 'done') AS analyzed_pages
+          FROM chapters c
+          JOIN pages p ON p.chapter_id = c.id
+          LEFT JOIN page_analysis pa ON pa.page_id = p.id
+         WHERE c.manga_id = $1
+         GROUP BY c.id, c.number, c.title
+         ORDER BY c.number, c.id
+        "#,
+    )
+    .bind(manga_id)
+    .fetch_all(pool)
+    .await?;
+    Ok(rows)
+}
+
+/// Per-page status grid for a chapter. `status` resolves to the analysis
+/// row's state (`done`/`failed`), else `queued` when a pending/running
+/// analyze_page job exists, else `none`.
+pub async fn chapter_page_status(
+    pool: &PgPool,
+    chapter_id: uuid::Uuid,
+) -> AppResult<Vec<PageStatusItem>> {
+    let rows = sqlx::query_as::<_, PageStatusItem>(
+        r#"
+        SELECT p.id AS page_id, p.page_number,
+               COALESCE(
+                   pa.status,
+                   CASE WHEN EXISTS (
+                       SELECT 1 FROM crawler_jobs j
+                        WHERE j.payload->>'kind' = 'analyze_page'
+                          AND j.payload->>'page_id' = p.id::text
+                          AND j.state IN ('pending', 'running')
+                   ) THEN 'queued' ELSE 'none' END
+               ) AS status
+          FROM pages p
+          LEFT JOIN page_analysis pa ON pa.page_id = p.id
+         WHERE p.chapter_id = $1
+         ORDER BY p.page_number
+        "#,
+    )
+    .bind(chapter_id)
+    .fetch_all(pool)
+    .await?;
+    Ok(rows)
+}
+
+/// Full analysis detail for one page. `None` when the page itself doesn't
+/// exist; an existing-but-unanalyzed page returns `status = "none"` with
+/// empty OCR/tags/warnings so the UI can show "not analyzed yet".
+pub async fn page_detail(
+    pool: &PgPool,
+    page_id: uuid::Uuid,
+) -> AppResult<Option<PageAnalysisDetail>> {
+    let Some((page_number, chapter_id, manga_id)): Option<(i32, uuid::Uuid, uuid::Uuid)> =
+        sqlx::query_as(
+            "SELECT p.page_number, p.chapter_id, c.manga_id \
+               FROM pages p JOIN chapters c ON c.id = p.chapter_id WHERE p.id = $1",
+        )
+        .bind(page_id)
+        .fetch_optional(pool)
+        .await?
+    else {
+        return Ok(None);
+    };
+
+    let analysis = load(pool, page_id).await?;
+
+    let ocr = sqlx::query_as::<_, OcrLine>(
+        "SELECT kind, text FROM page_ocr_text WHERE page_id = $1 ORDER BY ord, id",
+    )
+    .bind(page_id)
+    .fetch_all(pool)
+    .await?;
+
+    let tags: Vec<String> = sqlx::query_scalar(
+        "SELECT t.name FROM page_auto_tags pat JOIN tags t ON t.id = pat.tag_id \
+          WHERE pat.page_id = $1 ORDER BY t.name",
+    )
+    .bind(page_id)
+    .fetch_all(pool)
+    .await?;
+
+    let content_warnings = sqlx::query_scalar::<_, ContentWarning>(
+        "SELECT warning FROM page_content_warnings WHERE page_id = $1 ORDER BY warning",
+    )
+    .bind(page_id)
+    .fetch_all(pool)
+    .await?;
+
+    Ok(Some(PageAnalysisDetail {
+        page_id,
+        page_number,
+        chapter_id,
+        manga_id,
+        status: analysis
+            .as_ref()
+            .map(|a| format!("{:?}", a.status).to_lowercase())
+            .unwrap_or_else(|| "none".to_string()),
+        is_nsfw: analysis.as_ref().map(|a| a.is_nsfw).unwrap_or(false),
+        scene_description: analysis.as_ref().and_then(|a| a.scene_description.clone()),
+        model: analysis.as_ref().and_then(|a| a.model.clone()),
+        error: analysis.as_ref().and_then(|a| a.error.clone()),
+        analyzed_at: analysis.as_ref().and_then(|a| a.analyzed_at),
+        ocr,
+        tags,
+        content_warnings,
+    }))
+}
+
 /// Deduplicated union of content warnings across all of a manga's pages,
 /// ordered alphabetically. Powers the manga-detail content-warning banner.
 pub async fn warnings_for_manga(

backend/tests/api_admin_analysis.rs

@@ -409,3 +409,157 @@ async fn force_analyze_unknown_page_is_404(pool: PgPool) {
         .unwrap();
     assert_eq!(resp.status(), StatusCode::NOT_FOUND);
 }
+
+// ---- coverage / inspection -------------------------------------------------
+
+async fn get_json(h: &common::Harness, cookie: &str, uri: &str) -> serde_json::Value {
+    let resp = h
+        .app
+        .clone()
+        .oneshot(common::get_with_cookie(uri, cookie))
+        .await
+        .unwrap();
+    assert_eq!(resp.status(), StatusCode::OK, "GET {uri} failed");
+    common::body_json(resp).await
+}
+
+/// Seed a manga (1 chapter, 2 pages), analyze the first, return ids.
+async fn seed_partial(pool: &PgPool) -> (uuid::Uuid, uuid::Uuid, uuid::Uuid, uuid::Uuid) {
+    use mangalord::domain::page_analysis::{OcrResult, SafetyFlag, VisionAnalysis};
+    let (manga_id, chapter_id, ids) = seed_manga_chapter_pages(pool, 2).await;
+    repo::page_analysis::persist_analysis(
+        pool,
+        ids[0],
+        &VisionAnalysis {
+            ocr_results: vec![OcrResult {
+                text: "Hello".into(),
+                kind: "speech".into(),
+            }],
+            tagging_results: vec!["action".into(), "city".into()],
+            scene_description: "A rainy street.".into(),
+            safety_flag: SafetyFlag {
+                is_nsfw: true,
+                content_type: vec!["gore".into()],
+            },
+        },
+        "test-model",
+    )
+    .await
+    .unwrap();
+    (manga_id, chapter_id, ids[0], ids[1])
+}
+
+#[sqlx::test(migrations = "./migrations")]
+async fn coverage_mangas_reports_analyzed_over_total(pool: PgPool) {
+    // Coverage works with the worker disabled — use the plain harness.
+    let h = common::harness(pool.clone());
+    let cookie = seed_admin(&pool, &h.app).await;
+    let (manga_id, _ch, _p1, _p2) = seed_partial(&pool).await;
+
+    let body = get_json(&h, &cookie, "/api/v1/admin/analysis/mangas?search=M").await;
+    let item = &body["items"][0];
+    assert_eq!(item["manga_id"].as_str().unwrap(), manga_id.to_string());
+    assert_eq!(item["total_pages"], 2);
+    assert_eq!(item["analyzed_pages"], 1);
+}
+
+#[sqlx::test(migrations = "./migrations")]
+async fn coverage_chapters_lists_per_chapter_counts(pool: PgPool) {
+    let h = common::harness(pool.clone());
+    let cookie = seed_admin(&pool, &h.app).await;
+    let (manga_id, chapter_id, _p1, _p2) = seed_partial(&pool).await;
+
+    let body = get_json(
+        &h,
+        &cookie,
+        &format!("/api/v1/admin/analysis/mangas/{manga_id}/chapters"),
+    )
+    .await;
+    let item = &body["items"][0];
+    assert_eq!(item["chapter_id"].as_str().unwrap(), chapter_id.to_string());
+    assert_eq!(item["total_pages"], 2);
+    assert_eq!(item["analyzed_pages"], 1);
+}
+
+#[sqlx::test(migrations = "./migrations")]
+async fn chapter_pages_reports_per_page_status(pool: PgPool) {
+    let h = common::harness(pool.clone());
+    let cookie = seed_admin(&pool, &h.app).await;
+    let (_m, chapter_id, p1, p2) = seed_partial(&pool).await;
+
+    let body = get_json(
+        &h,
+        &cookie,
+        &format!("/api/v1/admin/analysis/chapters/{chapter_id}/pages"),
+    )
+    .await;
+    let items = body["items"].as_array().unwrap();
+    assert_eq!(items.len(), 2);
+    let status_for = |id: uuid::Uuid| {
+        items
+            .iter()
+            .find(|i| i["page_id"].as_str().unwrap() == id.to_string())
+            .unwrap()["status"]
+            .as_str()
+            .unwrap()
+            .to_string()
+    };
+    assert_eq!(status_for(p1), "done");
+    assert_eq!(status_for(p2), "none");
+}
+
+#[sqlx::test(migrations = "./migrations")]
+async fn page_detail_returns_full_result(pool: PgPool) {
+    let h = common::harness(pool.clone());
+    let cookie = seed_admin(&pool, &h.app).await;
+    let (_m, _ch, p1, p2) = seed_partial(&pool).await;
+
+    let d = get_json(&h, &cookie, &format!("/api/v1/admin/analysis/pages/{p1}")).await;
+    assert_eq!(d["status"], "done");
+    assert_eq!(d["is_nsfw"], true);
+    assert_eq!(d["scene_description"], "A rainy street.");
+    assert_eq!(d["model"], "test-model");
+    assert_eq!(d["ocr"][0]["kind"], "speech");
+    assert_eq!(d["ocr"][0]["text"], "Hello");
+    let tags: Vec<&str> = d["tags"].as_array().unwrap().iter().map(|t| t.as_str().unwrap()).collect();
+    assert!(tags.contains(&"action") && tags.contains(&"city"));
+    assert_eq!(d["content_warnings"][0], "gore");
+
+    // Unanalyzed page → status "none", empty result.
+    let d2 = get_json(&h, &cookie, &format!("/api/v1/admin/analysis/pages/{p2}")).await;
+    assert_eq!(d2["status"], "none");
+    assert_eq!(d2["ocr"].as_array().unwrap().len(), 0);
+    assert_eq!(d2["tags"].as_array().unwrap().len(), 0);
+}
+
+#[sqlx::test(migrations = "./migrations")]
+async fn page_detail_unknown_page_is_404(pool: PgPool) {
+    let h = common::harness(pool.clone());
+    let cookie = seed_admin(&pool, &h.app).await;
+    let resp = h
+        .app
+        .clone()
+        .oneshot(common::get_with_cookie(
+            &format!("/api/v1/admin/analysis/pages/{}", uuid::Uuid::new_v4()),
+            &cookie,
+        ))
+        .await
+        .unwrap();
+    assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+}
+
+#[sqlx::test(migrations = "./migrations")]
+async fn coverage_requires_admin(pool: PgPool) {
+    let h = common::harness(pool.clone());
+    let (_u, cookie) = common::register_user(&h.app).await;
+    let resp = h
+        .app
+        .clone()
+        .oneshot(common::get_with_cookie(
+            "/api/v1/admin/analysis/mangas",
+            &cookie,
+        ))
+        .await
+        .unwrap();
+    assert_eq!(resp.status(), StatusCode::FORBIDDEN);
+}

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mangalord-frontend",
-  "version": "0.74.1",
+  "version": "0.75.0",
   "private": true,
   "type": "module",
   "scripts": {