refactor(docs): strip residual Phase/Plan setup-history references

Final sweep for setup-process bookkeeping not caught by template-reset-v1.
ADRs drop Plan-N qualifiers; spec collapses the historical 11-phase
migration table; scaffolding guide drops "Phase added" column; comment
prefixes referencing R-numbers in test describes / eslint inline comments
are normalized. Architecture-level rule IDs (R40, R52, E0, J0, etc.) are
preserved where they serve as stable cross-references in ADRs.

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

apps/web-next/src/server/bind-production.test.ts

@@ -177,7 +177,7 @@ describe("bindAll dispatcher", () => {
   });
 });
 
-describe("bindAll instrumentation orthogonality (Rule 0, R47)", () => {
+describe("bindAll instrumentation orthogonality", () => {
   beforeEach(() => {
     vi.resetModules();
     vi.clearAllMocks();