feat: add summary_length setting (1=court, 2=moyen, 3=detaille)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -117,7 +117,7 @@ cd frontend && npx tsc --noEmit
 - `GET /api/v1/admin/users` — user list
 - `PUT /api/v1/admin/users/:id/role` — role management
 
-## Database (22 migrations)
+## Database (23 migrations)
 Tables: `users`, `sessions`, `magic_link_tokens`, `user_settings`, `sources`, `syntheses`, `admin_providers`, `admin_rate_limits`, `user_api_keys`, `audit_log`
 
 ## Environment Variables

backend/migrations/20260326000023_add_summary_length.sql

@@ -0,0 +1 @@
+ALTER TABLE settings ADD COLUMN summary_length INTEGER NOT NULL DEFAULT 3;

backend/src/db/settings.rs

@@ -22,6 +22,7 @@ struct SettingsRow {
     use_brave_search: bool,
     article_history_days: i32,
     batch_size: i32,
+    summary_length: i32,
     search_agent_behavior: String,
     ai_provider: String,
     ai_model: String,
@@ -50,6 +51,7 @@ impl TryFrom<SettingsRow> for UserSettings {
             use_brave_search: row.use_brave_search,
             article_history_days: row.article_history_days,
             batch_size: row.batch_size,
+            summary_length: row.summary_length,
             search_agent_behavior: row.search_agent_behavior,
             ai_provider: row.ai_provider,
             ai_model: row.ai_model,
@@ -76,10 +78,10 @@ pub async fn get_or_create_default(
 
     let row = sqlx::query_as::<_, SettingsRow>(
         r#"
-        INSERT INTO settings (user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size)
+        INSERT INTO settings (user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size, summary_length)
-        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17)
         ON CONFLICT (user_id) DO UPDATE SET user_id = settings.user_id
-        RETURNING user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size, updated_at
+        RETURNING user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size, summary_length, updated_at
         "#,
     )
     .bind(user_id)
@@ -98,6 +100,7 @@ pub async fn get_or_create_default(
     .bind(defaults.use_brave_search)
     .bind(defaults.article_history_days)
     .bind(defaults.batch_size)
+    .bind(defaults.summary_length)
     .fetch_one(pool)
     .await?;
 
@@ -116,8 +119,8 @@ pub async fn upsert(
 
     let row = sqlx::query_as::<_, SettingsRow>(
         r#"
-        INSERT INTO settings (user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size)
+        INSERT INTO settings (user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size, summary_length)
-        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17)
         ON CONFLICT (user_id) DO UPDATE SET
             theme = EXCLUDED.theme,
             max_age_days = EXCLUDED.max_age_days,
@@ -134,8 +137,9 @@ pub async fn upsert(
             use_brave_search = EXCLUDED.use_brave_search,
             article_history_days = EXCLUDED.article_history_days,
             batch_size = EXCLUDED.batch_size,
+            summary_length = EXCLUDED.summary_length,
             updated_at = now()
-        RETURNING user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size, updated_at
+        RETURNING user_id, theme, max_age_days, categories, max_items_per_category, search_agent_behavior, ai_provider, ai_model, ai_model_websearch, rate_limit_max_requests, rate_limit_time_window_seconds, max_articles_per_source, use_llm_for_source_links, use_brave_search, article_history_days, batch_size, summary_length, updated_at
         "#,
     )
     .bind(user_id)
@@ -154,6 +158,7 @@ pub async fn upsert(
     .bind(req.use_brave_search)
     .bind(req.article_history_days)
     .bind(req.batch_size)
+    .bind(req.summary_length)
     .fetch_one(pool)
     .await?;
 

backend/src/models/settings.rs

@@ -18,6 +18,7 @@ pub struct UserSettings {
     pub use_brave_search: bool,
     pub article_history_days: i32,
     pub batch_size: i32,
+    pub summary_length: i32,
     pub search_agent_behavior: String,
     pub ai_provider: String,
     pub ai_model: String,
@@ -40,6 +41,7 @@ pub struct UpdateSettingsRequest {
     pub use_brave_search: bool,
     pub article_history_days: i32,
     pub batch_size: i32,
+    pub summary_length: i32,
     pub search_agent_behavior: String,
     pub ai_provider: String,
     pub ai_model: String,
@@ -92,6 +94,9 @@ impl UpdateSettingsRequest {
         if !(1..=20).contains(&self.batch_size) {
             return Err("batch_size must be between 1 and 20".into());
         }
+        if !(1..=3).contains(&self.summary_length) {
+            return Err("summary_length must be between 1 and 3".into());
+        }
         if self.search_agent_behavior.len() > 2000 {
             return Err("search_agent_behavior must be at most 2000 characters".into());
         }
@@ -138,6 +143,7 @@ impl Default for UserSettings {
             use_brave_search: false,
             article_history_days: 90,
             batch_size: 5,
+            summary_length: 3,
             search_agent_behavior: String::new(),
             ai_provider: String::new(),
             ai_model: String::new(),
@@ -165,6 +171,7 @@ mod tests {
             use_brave_search: false,
             article_history_days: 90,
             batch_size: 5,
+            summary_length: 3,
             search_agent_behavior: String::new(),
             ai_provider: String::new(),
             ai_model: String::new(),

backend/src/services/prompts.rs

@@ -201,6 +201,7 @@ mod tests {
             use_brave_search: false,
             article_history_days: 90,
             batch_size: 5,
+            summary_length: 3,
             search_agent_behavior: String::new(),
             ai_provider: String::new(),
             ai_model: String::new(),

backend/tests/api_syntheses_test.rs

@@ -635,6 +635,7 @@ async fn generate_pipeline_resolves_model_from_admin_config() {
         "use_brave_search": false,
         "article_history_days": 90,
         "batch_size": 5,
+        "summary_length": 3,
         "search_agent_behavior": "",
         "ai_provider": "openai",
         "ai_model": "",

backend/tests/pipeline_test.rs

@@ -61,6 +61,7 @@ async fn setup_user_with_settings(
         "use_brave_search": false,
         "article_history_days": 90,
         "batch_size": 5,
+        "summary_length": 3,
         "search_agent_behavior": "",
         "ai_provider": "",
         "ai_model": "",