docs(mollifier): strip internal planning labels from comments

Remove plan-tracking shorthand (Q# bifurcation, Phase C1/Q4) from replay-layer mollifier comments and test names; reword to plain English. Comment/test-name only; no behaviour change.

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

Author: d-cs

apps/webapp/app/v3/mollifier/mollifierDrainerHandler.server.ts

@@ -53,7 +53,7 @@ export function createDrainerHandler(deps: {
           })
         : context.active();
 
-    // Cancel-wins-over-trigger (Q4 bifurcation). If a cancel API call
+    // Cancel-wins-over-trigger. If a cancel API call
     // landed on this entry while it was QUEUED, the snapshot carries
     // `cancelledAt` + `cancelReason`. Skip the normal materialise path
     // and write a CANCELED PG row directly. The existing runCancelled

apps/webapp/test/mollifierDrainerHandler.test.ts

@@ -182,7 +182,7 @@ describe("createDrainerHandler", () => {
   });
 
   it("honours the cancel when a buffered cancel races a materialised non-CANCELED row", async () => {
-    // Cancel-wins-over-trigger (Q4 bifurcation). If the normal trigger
+    // Cancel-wins-over-trigger. If the normal trigger
     // replay path materialised a live PENDING row before the cancel
     // bifurcation drained, engine.createCancelledRun throws a conflict —
     // its documented contract is that "the caller must decide between

internal-packages/run-engine/src/engine/tests/createCancelledRun.test.ts

@@ -44,7 +44,7 @@ function baseEngineOptions(redisOptions: Parameters<typeof RunEngine>[0]["queue"
   };
 }
 
-// Phase C1 / Q4 design — engine.createCancelledRun writes a CANCELED
+// engine.createCancelledRun writes a CANCELED
 // TaskRun row directly from a buffer snapshot. Verifies the bypass-
 // queue / bypass-waitpoint / emit-runCancelled contract.
 describe("RunEngine.createCancelledRun", () => {