add system dependency checks (php-curl, sqlite3) to deploy-server.sh step 0

app/migrations/applied/019_add_ecriture_format.sql

@@ -1,2 +1,2 @@
 -- Migration 019: Add "Écriture" format type
-INSERT INTO format_types (name) VALUES ('Écriture');
+INSERT OR IGNORE INTO format_types (name) VALUES ('Écriture');

app/migrations/pending/033_dedup_format_types.sql

@@ -0,0 +1,31 @@
+-- Migration 033: Deduplicate format_types rows (caused by repeated runs of migration 019).
+-- For each name, keep the row with the lowest id, reassign thesis_formats references.
+
+-- 1. Map each duplicate format_id → canonical format_id
+CREATE TEMP TABLE _fmt_map AS
+SELECT
+    dup.id AS old_id,
+    (
+        SELECT MIN(keep.id)
+        FROM format_types keep
+        WHERE keep.name = dup.name
+    ) AS new_id
+FROM format_types dup
+WHERE dup.id != (
+    SELECT MIN(keep.id)
+    FROM format_types keep
+    WHERE keep.name = dup.name
+);
+
+-- 2. Update affected thesis_formats rows
+UPDATE thesis_formats
+SET format_id = (
+    SELECT new_id FROM _fmt_map WHERE old_id = format_id
+)
+WHERE format_id IN (SELECT old_id FROM _fmt_map);
+
+-- 3. Delete duplicate rows
+DELETE FROM format_types
+WHERE id IN (SELECT old_id FROM _fmt_map);
+
+DROP TABLE _fmt_map;