feat: consolidate 26 tools into 10 tools with 90 actions

Refactor the entire tool layer to use the consolidated action pattern
(action: Literal[...] with QUERIES/MUTATIONS dicts). This reduces LLM
context from ~12k to ~5k tokens while adding ~60 new API capabilities.

New tools: unraid_info (19 actions), unraid_array (12), unraid_notifications (9),
unraid_users (8), unraid_keys (5). Rewritten: unraid_docker (15), unraid_vm (9),
unraid_storage (6), unraid_rclone (4), unraid_health (3).

Includes 129 tests across 10 test files, code review fixes for 16 issues
(severity ordering, PrefixedID regex, sensitive var redaction, etc.).

Removes tools/system.py (replaced by tools/info.py). Version bumped to 0.2.0.

tests/test_array.py

@@ -0,0 +1,77 @@
+"""Tests for unraid_array tool."""
+
+from unittest.mock import AsyncMock, patch
+
+import pytest
+from conftest import make_tool_fn
+
+from unraid_mcp.core.exceptions import ToolError
+
+
+@pytest.fixture
+def _mock_graphql() -> AsyncMock:
+    with patch("unraid_mcp.tools.array.make_graphql_request", new_callable=AsyncMock) as mock:
+        yield mock
+
+
+def _make_tool():
+    return make_tool_fn("unraid_mcp.tools.array", "register_array_tool", "unraid_array")
+
+
+class TestArrayValidation:
+    async def test_destructive_action_requires_confirm(self, _mock_graphql: AsyncMock) -> None:
+        tool_fn = _make_tool()
+        for action in ("start", "stop", "shutdown", "reboot"):
+            with pytest.raises(ToolError, match="destructive"):
+                await tool_fn(action=action)
+
+    async def test_disk_action_requires_disk_id(self, _mock_graphql: AsyncMock) -> None:
+        tool_fn = _make_tool()
+        for action in ("mount_disk", "unmount_disk", "clear_stats"):
+            with pytest.raises(ToolError, match="disk_id"):
+                await tool_fn(action=action)
+
+
+class TestArrayActions:
+    async def test_start_array(self, _mock_graphql: AsyncMock) -> None:
+        _mock_graphql.return_value = {"setState": {"state": "STARTED"}}
+        tool_fn = _make_tool()
+        result = await tool_fn(action="start", confirm=True)
+        assert result["success"] is True
+        assert result["action"] == "start"
+        _mock_graphql.assert_called_once()
+
+    async def test_parity_start_with_correct(self, _mock_graphql: AsyncMock) -> None:
+        _mock_graphql.return_value = {"parityCheck": {"start": True}}
+        tool_fn = _make_tool()
+        result = await tool_fn(action="parity_start", correct=True)
+        assert result["success"] is True
+        call_args = _mock_graphql.call_args
+        assert call_args[0][1] == {"correct": True}
+
+    async def test_parity_history(self, _mock_graphql: AsyncMock) -> None:
+        _mock_graphql.return_value = {"array": {"parityCheckStatus": {"progress": 50}}}
+        tool_fn = _make_tool()
+        result = await tool_fn(action="parity_history")
+        assert result["success"] is True
+
+    async def test_mount_disk(self, _mock_graphql: AsyncMock) -> None:
+        _mock_graphql.return_value = {"mountArrayDisk": True}
+        tool_fn = _make_tool()
+        result = await tool_fn(action="mount_disk", disk_id="disk:1")
+        assert result["success"] is True
+        call_args = _mock_graphql.call_args
+        assert call_args[0][1] == {"id": "disk:1"}
+
+    async def test_shutdown(self, _mock_graphql: AsyncMock) -> None:
+        _mock_graphql.return_value = {"shutdown": True}
+        tool_fn = _make_tool()
+        result = await tool_fn(action="shutdown", confirm=True)
+        assert result["success"] is True
+        assert result["action"] == "shutdown"
+
+    async def test_generic_exception_wraps(self, _mock_graphql: AsyncMock) -> None:
+        _mock_graphql.side_effect = RuntimeError("disk error")
+        tool_fn = _make_tool()
+        with pytest.raises(ToolError, match="disk error"):
+            await tool_fn(action="parity_history")