test(sharing): count the MANAGE matrix without the life-event handlers

Life events are owner-only, so their three MANAGE handlers leave the
admitted inventory and the integration matrix's driver counts with it.

tests/integration/sharing-manage-handler-matrix.test.ts

@@ -282,7 +282,7 @@ const ROUTE_IMPORTS = import.meta.glob<Record<string, unknown>>(
 
 describe("the complete MANAGE handler matrix", () => {
   it("starts with a non-empty, exact handler inventory", () => {
-    expect(ADMITTED_MUTATING_HANDLERS.length).toBe(90);
+    expect(ADMITTED_MUTATING_HANDLERS.length).toBe(87);
   });
 });
 
@@ -2846,13 +2846,13 @@ describe("the conditions the admissions were granted on", () => {
 describe("the complete MANAGE handler matrix", () => {
   it("registers one strict actor-and-effect driver for every admission", () => {
     const expected = ADMITTED_MUTATING_HANDLERS.map(matrixKey).sort();
-    expect(STRICT_DRIVER_KEYS.size).toBe(90);
+    expect(STRICT_DRIVER_KEYS.size).toBe(87);
     expect([...STRICT_DRIVER_KEYS].sort()).toEqual(expected);
   });
 
   it("executes every registered driver through its owned effect and actor audit", () => {
     const expected = ADMITTED_MUTATING_HANDLERS.map(matrixKey).sort();
-    expect(REAL_EFFECT_KEYS.size).toBe(90);
+    expect(REAL_EFFECT_KEYS.size).toBe(87);
     expect([...REAL_EFFECT_KEYS].sort()).toEqual(expected);
   });
 });