docs(adr): point ADR-0041's References at where the trigger packages live (#16435)

ADR-0041's `## References` section names the two shipped trigger packages by
source path. Both paths moved on 2026-06-12 and the pointer did not, so it now
sends a reader to a directory that does not exist:

  - Shipped triggers: `packages/plugins/plugin-trigger-record-change`,
    `packages/plugins/plugin-trigger-schedule`
  + Shipped triggers: `packages/triggers/trigger-record-change`,
    `packages/triggers/trigger-schedule`

Same defect class and same migration as the two `repository.directory` manifest
corrections on PR #15993; carved out of that PR because `docs/adr/**` is a
governed surface, so one path hit makes the whole PR ineligible for the merge
queue and it was ejected from the queue four times. This is that one line, on
its own branch, byte-identical to what #15993 carried (blob 9016f38).

Deliberately left as written: the same record's rename table and narrative at
lines 46, 48 and 97-100. Those name the old identifiers as the decision's own
history, and the table's left column is a package name rather than a path -- a
References pointer is live, a decision record's account of what it renamed is
not. The anchored replacement could not have reached them in any case; they
carry no `packages/plugins/` prefix.


Claude-Session: https://claude.ai/code/session_01XpTx2tbq3pZRYAdoGt6E6Y

Co-authored-by: Claude <noreply@anthropic.com>

Author: os-warren

docs/adr/0041-flow-trigger-family.md

@@ -191,8 +191,8 @@ other contract-ahead-of-runtime surfaces.
 
 - Engine seam: `packages/services/service-automation/src/engine.ts`
   (`FlowTrigger`, `registerTrigger`, `activateFlowTrigger`)
-- Shipped triggers: `packages/plugins/plugin-trigger-record-change`,
-  `packages/plugins/plugin-trigger-schedule`
+- Shipped triggers: `packages/triggers/trigger-record-change`,
+  `packages/triggers/trigger-schedule`
 - Reserved surface: `FlowSchema.type` enum (`packages/spec/src/automation/flow.zod.ts`)
 - Auto-wiring: `packages/cli/src/commands/serve.ts` (trigger `nameMatch` table)
 - Related: ADR-0018 (descriptor pattern this extends), ADR-0030 (outbox),