fix: auto-correct PostgreSQL boolean types at Docker startup

Automatically fixes INTEGER->BOOLEAN type mismatches when Docker starts.
This resolves the 500 error on /api/notes without manual intervention.

Changes:
- scripts/fix-postgres-boolean-types.sql: Idempotent SQL script that
  detects INTEGER columns that should be BOOLEAN and converts them
  (0→FALSE, 1→TRUE) for all affected tables

- docker-entrypoint.sh: Executes the boolean correction script
  automatically after migrations and before starting the server

The script corrects these columns:
  • users.is_admin
  • notes.archived
  • note_todos.completed, note_todos.priority
  • global_todos.completed, global_todos.priority
  • rss_feeds.enabled
  • calendar_events.all_day

The correction is idempotent and runs on every container restart,
ensuring data integrity even after database migrations.

Fixes: Notes not displaying due to boolean type mismatch

scripts/fix-postgres-boolean-types.sql

@@ -0,0 +1,91 @@
+-- Script de correction des types booléens PostgreSQL
+-- Convertit les colonnes INTEGER en BOOLEAN et les données 0/1 en FALSE/TRUE
+-- Ce script est idempotent: il peut être exécuté plusieurs fois sans problème
+
+-- Fonction pour vérifier et corriger le type d'une colonne
+DO $$
+DECLARE
+    column_info RECORD;
+BEGIN
+    -- Corriger users.is_admin
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'users' AND column_name = 'is_admin';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting users.is_admin from INTEGER to BOOLEAN';
+        ALTER TABLE users ALTER COLUMN is_admin TYPE BOOLEAN
+        USING CASE WHEN is_admin = 0 THEN FALSE WHEN is_admin = 1 THEN TRUE ELSE is_admin::BOOLEAN END;
+    END IF;
+
+    -- Corriger notes.archived
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'notes' AND column_name = 'archived';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting notes.archived from INTEGER to BOOLEAN';
+        ALTER TABLE notes ALTER COLUMN archived TYPE BOOLEAN
+        USING CASE WHEN archived = 0 THEN FALSE WHEN archived = 1 THEN TRUE ELSE archived::BOOLEAN END;
+    END IF;
+
+    -- Corriger note_todos.completed
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'note_todos' AND column_name = 'completed';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting note_todos.completed from INTEGER to BOOLEAN';
+        ALTER TABLE note_todos ALTER COLUMN completed TYPE BOOLEAN
+        USING CASE WHEN completed = 0 THEN FALSE WHEN completed = 1 THEN TRUE ELSE completed::BOOLEAN END;
+    END IF;
+
+    -- Corriger note_todos.priority
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'note_todos' AND column_name = 'priority';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting note_todos.priority from INTEGER to BOOLEAN';
+        ALTER TABLE note_todos ALTER COLUMN priority TYPE BOOLEAN
+        USING CASE WHEN priority = 0 THEN FALSE WHEN priority = 1 THEN TRUE ELSE priority::BOOLEAN END;
+    END IF;
+
+    -- Corriger global_todos.completed
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'global_todos' AND column_name = 'completed';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting global_todos.completed from INTEGER to BOOLEAN';
+        ALTER TABLE global_todos ALTER COLUMN completed TYPE BOOLEAN
+        USING CASE WHEN completed = 0 THEN FALSE WHEN completed = 1 THEN TRUE ELSE completed::BOOLEAN END;
+    END IF;
+
+    -- Corriger global_todos.priority
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'global_todos' AND column_name = 'priority';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting global_todos.priority from INTEGER to BOOLEAN';
+        ALTER TABLE global_todos ALTER COLUMN priority TYPE BOOLEAN
+        USING CASE WHEN priority = 0 THEN FALSE WHEN priority = 1 THEN TRUE ELSE priority::BOOLEAN END;
+    END IF;
+
+    -- Corriger rss_feeds.enabled
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'rss_feeds' AND column_name = 'enabled';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting rss_feeds.enabled from INTEGER to BOOLEAN';
+        ALTER TABLE rss_feeds ALTER COLUMN enabled TYPE BOOLEAN
+        USING CASE WHEN enabled = 0 THEN FALSE WHEN enabled = 1 THEN TRUE ELSE enabled::BOOLEAN END;
+    END IF;
+
+    -- Corriger calendar_events.all_day
+    SELECT data_type INTO column_info FROM information_schema.columns
+    WHERE table_name = 'calendar_events' AND column_name = 'all_day';
+
+    IF FOUND AND column_info.data_type = 'integer' THEN
+        RAISE NOTICE 'Converting calendar_events.all_day from INTEGER to BOOLEAN';
+        ALTER TABLE calendar_events ALTER COLUMN all_day TYPE BOOLEAN
+        USING CASE WHEN all_day = 0 THEN FALSE WHEN all_day = 1 THEN TRUE ELSE all_day::BOOLEAN END;
+    END IF;
+
+    RAISE NOTICE 'Boolean type correction completed successfully';
+END $$;