feat(rapor): aylık değerlendirme raporu backend (şablon, yorumlar, öneriler)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

backend/src/routes/mod.rs

@@ -9,6 +9,7 @@ mod catalog;
 mod entry;
 mod health;
 mod household;
+mod monthly_report;
 mod note;
 mod period;
 mod plan;
@@ -90,6 +91,7 @@ pub fn router(state: AppState) -> Router {
         .route("/periods/{id}/notes", get(note::list).post(note::create))
         .route("/periods/{id}/summary", get(budget::summary))
         .route("/periods/{id}/review", get(review::get))
+        .route("/periods/{id}/report.md", get(monthly_report::get))
         .route("/periods/{id}/daily", get(stats::daily))
         .route("/stats/periods", get(stats::periods))
         .route("/reports/breakdown", get(reports::breakdown))

backend/src/routes/monthly_report.rs

@@ -0,0 +1,44 @@
+//! Aylık değerlendirme raporu (`services::monthly_report`, şablon `templates/monthly_report.md`).
+//!
+//! | Yöntem | Yol | İş |
+//! |---|---|---|
+//! | GET | `/api/periods/{id}/report.md` | dönemin raporu (Markdown); açık dönem → ara rapor |
+
+use axum::{
+    extract::{Path, State},
+    http::header,
+    response::IntoResponse,
+};
+use mongodb::bson::Uuid;
+
+use crate::{
+    auth::AuthUser,
+    error::{AppError, AppResult},
+    services::{backup::slug, monthly_report, period},
+    state::AppState,
+};
+
+pub async fn get(
+    State(s): State<AppState>,
+    auth: AuthUser,
+    Path(id): Path<String>,
+) -> AppResult<impl IntoResponse> {
+    let id = Uuid::parse_str(&id).map_err(|_| AppError::NotFound)?;
+    let p = period::get(&s.db, auth.household_id, id).await?;
+    let body = monthly_report::markdown(&s.db, auth.household_id, id).await?;
+    let file = format!("kakeibo-rapor-{}.md", slug(&p.name));
+    Ok((
+        [
+            (
+                header::CONTENT_TYPE,
+                "text/markdown; charset=utf-8".to_string(),
+            ),
+            (
+                header::CONTENT_DISPOSITION,
+                format!("inline; filename=\"{file}\""),
+            ),
+            (header::CACHE_CONTROL, "no-store".to_string()),
+        ],
+        body,
+    ))
+}