sprint-0: fundaciones VMS-Sailor

Sprint 0 completo del producto VMS-Sailor (Vessel Management System
integrado para buques 30-40m). Brief de referencia en
VMS_Sailor_v2_Parte_*.md (intacto).

Core (vmssailor.core, 95.17% coverage, 99 tests verde):
- ShipCoord: sistema naval x_pp/y_cl/z_bl frozen
- Vessel, Deck, Bulkhead
- Equipment, EquipmentModel, Sensor, EquipmentSpec
- Tag, AlarmConfig, TagBinding, Scaling
- CardInstance, Bus, Topology con validacion 21 puntos I/O AR-NMEA-IO-v1.0
- Alarm, PermissiveRule, Condition
- Project agregado raiz con validacion cross-entity
- Persistencia portable .vmsproj (SQLite) con roundtrip verificable

Biblioteca curada seed (vmssailor.library):
- systems_catalog.json completo (catalogo maestro Parte 1 sec 7)
- 2 vessels: Sunseeker 76, Ferretti 850
- 2 motores: MTU 12V 2000 M96, Volvo D13-900
- 1 genset: Northern Lights M65C13
- yacht_motor_planeo.yaml (reglas heuristicas)
- TODO marcado data_source=seed_estimate - requiere validacion datasheets

Tools:
- vms-validate-library: CLI valida biblioteca completa
- vms-generate-test-project: CLI demo + verificacion roundtrip persistencia

Design System + 8 mockups HTML estaticos:
- docs/design_system.md (paleta Deep Ocean, gradientes, typography, motion)
- docs/brand/ (logo + variantes SVG)
- docs/mockups/splash, studio_main, runtime_overview,
  runtime_mimic_fuel (P&ID animado), runtime_alarms, runtime_trim (panel
  estrella con horizonte artificial), mobile_overview, mobile_trim
- docs/mockups/index.html (galeria)

Firmware (Sprint 12+ implementacion):
- firmware/ar_nmea_io_v1/src/config/pinout.h con macros GPIO

Decisiones autonomas documentadas en docs/decisions_sprint0.md.

Stack: Python 3.11 + uv + Pydantic v2 + SQLite stdlib + hatchling +
pytest 9 + ruff + mypy. Sin PySide6, FastAPI, Flutter ni firmware
funcional (entran en sprints siguientes).

Criterio de aceptacion Sprint 0: cumplido.
- uv sync: OK
- pytest: 99/99 verde
- cov vmssailor.core: 95.17% (objetivo >=80%)
- ruff: clean
- vms-validate-library: OK
- vms-generate-test-project: INTEGRIDAD OK

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/core/test_alarm.py

@@ -0,0 +1,82 @@
+"""Tests de Alarm (instancia activa)."""
+
+from __future__ import annotations
+
+from datetime import UTC, datetime, timedelta
+
+import pytest
+from pydantic import ValidationError
+
+from vmssailor.core import Alarm
+from vmssailor.core.enums import AlarmPriority, AlarmState
+
+
+def _now() -> datetime:
+    return datetime.now(UTC)
+
+
+def test_alarm_active_basic() -> None:
+    a = Alarm(
+        id="alm_1",
+        tag_id="ME_PORT.OIL_PRESS",
+        alarm_config_id="ME_PORT.OIL_PRESS.LOW",
+        priority=AlarmPriority.EMERGENCY,
+        state=AlarmState.ACTIVE,
+        timestamp_active=_now(),
+        message="Oil pressure low",
+    )
+    assert a.state == AlarmState.ACTIVE
+    assert a.timestamp_ack is None
+
+
+def test_alarm_ack_requires_timestamp_ack() -> None:
+    with pytest.raises(ValidationError):
+        Alarm(
+            id="a",
+            tag_id="t",
+            alarm_config_id="t.low",
+            priority=AlarmPriority.HIGH,
+            state=AlarmState.ACK,
+            timestamp_active=_now(),
+            # timestamp_ack faltante
+        )
+
+
+def test_alarm_cleared_requires_timestamp_cleared() -> None:
+    with pytest.raises(ValidationError):
+        Alarm(
+            id="a",
+            tag_id="t",
+            alarm_config_id="t.low",
+            priority=AlarmPriority.HIGH,
+            state=AlarmState.CLEARED,
+            timestamp_active=_now(),
+        )
+
+
+def test_alarm_ack_timestamp_must_be_after_active() -> None:
+    t0 = _now()
+    with pytest.raises(ValidationError):
+        Alarm(
+            id="a",
+            tag_id="t",
+            alarm_config_id="t.low",
+            priority=AlarmPriority.HIGH,
+            state=AlarmState.ACK,
+            timestamp_active=t0,
+            timestamp_ack=t0 - timedelta(seconds=1),
+            acknowledged_by="op1",
+        )
+
+
+def test_alarm_acknowledged_by_without_ts_inconsistent() -> None:
+    with pytest.raises(ValidationError):
+        Alarm(
+            id="a",
+            tag_id="t",
+            alarm_config_id="t.low",
+            priority=AlarmPriority.HIGH,
+            state=AlarmState.ACTIVE,
+            timestamp_active=_now(),
+            acknowledged_by="op1",
+        )