Phase 1 MVP - Complete implementation

- Auth: register, login, JWT with refresh tokens, blocklist
- Projects/Folders/Documents CRUD with soft deletes
- Tags CRUD and assignment
- FTS5 search with highlights and tag filtering
- ADR-001, ADR-002, ADR-003 compliant
- Security fixes applied (JWT_SECRET_KEY, exception handler, cookie secure)
- 25 tests passing

alembic/versions/001_initial.py

@@ -0,0 +1,27 @@
+"""Initial schema
+
+Revision ID: 001
+Revises:
+Create Date: 2026-03-30
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = '001'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # All schema creation is handled in database.py init_db()
+    # This migration is a no-op since we use raw SQL for SQLite-specific features
+    pass
+
+
+def downgrade() -> None:
+    pass