feat(pid): pid_from_spec — a whole P&ID in one transaction, graph and critique returned

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd

tests/test_tool_registry.py

@@ -512,8 +512,9 @@ async def test_tool_group_sizes_are_unchanged():
     `pid_symbol_insert`, then 2 -> 3 when `pid_line_draw` joined, 3 -> 4
     when the reader `pid_graph` joined and 4 -> 7 when the three graph
     deliverables (`pid_instrument_index` / `pid_line_list` /
-    `pid_equipment_list`) joined; the `pid` tag is ranked first in
-    `_GROUP_TAG_PRIORITY` so those tools file under
+    `pid_equipment_list`) joined and 7 -> 8 when `pid_from_spec` (a whole
+    sheet from one declarative spec, in one transaction) joined; the `pid`
+    tag is ranked first in `_GROUP_TAG_PRIORITY` so those tools file under
     `pid` rather than under their secondary `query` / `create` tags. Every
     other number here has been unchanged since the snapshot was taken.
     """
@@ -531,7 +532,7 @@ async def test_tool_group_sizes_are_unchanged():
         "entity_query": 9,
         "layers": 14,
         "layouts": 12,
-        "pid": 7,
+        "pid": 8,
         "premium": 12,
         "solids": 5,
         "system": 7,
@@ -540,4 +541,4 @@ async def test_tool_group_sizes_are_unchanged():
         "validation": 1,
         "view": 4,
     }
-    assert sum(sizes.values()) == 164
+    assert sum(sizes.values()) == 165