Add storage

cyynote-backend/target/classes/db/migrations/V2__settings_drive_file.sql

@@ -0,0 +1,20 @@
+CREATE TABLE IF NOT EXISTS settings (
+    key TEXT PRIMARY KEY,
+    value TEXT
+);
+
+CREATE TABLE IF NOT EXISTS drive_file (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    filename TEXT,
+    original_name TEXT,
+    size INTEGER,
+    mime_type TEXT,
+    r2_key TEXT,
+    share_token TEXT,
+    share_expiry TEXT,
+    userid INTEGER,
+    createtime TEXT,
+    flag INTEGER DEFAULT 1
+);
+
+ALTER TABLE user ADD COLUMN password_hashed INTEGER DEFAULT 0;

cyynote-backend/target/classes/db/migrations/V3__note_userid_index.sql

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+-- Ensure note.userid column exists (for older databases created before this field was added)
+ALTER TABLE note ADD COLUMN userid INTEGER DEFAULT 0;
+
+-- Index for faster per-user queries
+CREATE INDEX IF NOT EXISTS idx_note_userid ON note(userid);
+CREATE INDEX IF NOT EXISTS idx_note_flag_userid ON note(flag, userid);

cyynote-backend/target/classes/db/migrations/V4__backfill_note_userid.sql

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+-- V4: Assign existing notes without an owner to userid=1 (first admin)
+-- This ensures production data created before multi-user isolation is not lost.
+UPDATE note SET userid = 1 WHERE userid IS NULL OR userid = 0;
+
+INSERT OR IGNORE INTO db_version (version, applied_at) VALUES (4, datetime('now'));

cyynote-backend/target/classes/db/migrations/V5__note_tags.sql

@@ -0,0 +1,4 @@
+-- V5: Add tags column to note table
+ALTER TABLE note ADD COLUMN tags TEXT DEFAULT '';
+
+INSERT OR IGNORE INTO db_version (version, applied_at) VALUES (5, datetime('now'));