feat(break-time): add migrations for break_seconds, paused_at, and default break rules (Issue #561)

- Migration 137: add time_entries.break_seconds, time_entries.paused_at
- Migration 138: add settings break_after_hours_1/2, break_minutes_1/2 (e.g. 6h->30min, 9h->45min)

migrations/versions/137_add_break_time_to_time_entries.py

@@ -0,0 +1,51 @@
+"""Add break_seconds and paused_at to time_entries (Issue #561)
+
+Revision ID: 137_add_break_time
+Revises: 136_seed_overtime_leave_type
+Create Date: 2026-03-11
+
+Break time for timers (pause/resume) and manual time entries.
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "137_add_break_time"
+down_revision = "136_seed_overtime_leave_type"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    from sqlalchemy import inspect
+
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    if "time_entries" not in inspector.get_table_names():
+        return
+    columns = {c["name"] for c in inspector.get_columns("time_entries")}
+
+    if "break_seconds" not in columns:
+        op.add_column(
+            "time_entries",
+            sa.Column("break_seconds", sa.Integer(), nullable=True, server_default="0"),
+        )
+    if "paused_at" not in columns:
+        op.add_column(
+            "time_entries",
+            sa.Column("paused_at", sa.DateTime(), nullable=True),
+        )
+
+
+def downgrade():
+    from sqlalchemy import inspect
+
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    if "time_entries" not in inspector.get_table_names():
+        return
+    columns = {c["name"] for c in inspector.get_columns("time_entries")}
+    if "paused_at" in columns:
+        op.drop_column("time_entries", "paused_at")
+    if "break_seconds" in columns:
+        op.drop_column("time_entries", "break_seconds")

migrations/versions/138_add_default_break_rules_settings.py

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+"""Add default break rules to settings (Issue #561)
+
+Revision ID: 138_add_break_rules
+Revises: 137_add_break_time
+Create Date: 2026-03-11
+
+Optional default break rules (e.g. Germany: >6h = 30 min, >9h = 45 min).
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "138_add_break_rules"
+down_revision = "137_add_break_time"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    from sqlalchemy import inspect
+
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    if "settings" not in inspector.get_table_names():
+        return
+    columns = {c["name"] for c in inspector.get_columns("settings")}
+
+    if "break_after_hours_1" not in columns:
+        op.add_column("settings", sa.Column("break_after_hours_1", sa.Float(), nullable=True, server_default="6"))
+    if "break_minutes_1" not in columns:
+        op.add_column("settings", sa.Column("break_minutes_1", sa.Integer(), nullable=True, server_default="30"))
+    if "break_after_hours_2" not in columns:
+        op.add_column("settings", sa.Column("break_after_hours_2", sa.Float(), nullable=True, server_default="9"))
+    if "break_minutes_2" not in columns:
+        op.add_column("settings", sa.Column("break_minutes_2", sa.Integer(), nullable=True, server_default="45"))
+
+
+def downgrade():
+    from sqlalchemy import inspect
+
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    if "settings" not in inspector.get_table_names():
+        return
+    columns = {c["name"] for c in inspector.get_columns("settings")}
+    for name in ["break_after_hours_2", "break_minutes_2", "break_after_hours_1", "break_minutes_1"]:
+        if name in columns:
+            op.drop_column("settings", name)