docs: audit + fix — remove observe CLI refs, correct defaults, fix public API imports, add historical banners

docs/extensions/EXTENSION-ARCHITECTURE.md

@@ -1,5 +1,7 @@
 # APOPHIS v1.1 Architecture — Hybrid Core + Extensions
 
+> **HISTORICAL**: This is a v1.1 architecture design specification. For current extension documentation, see [EXTENSION-PLUGIN-SYSTEM.md](EXTENSION-PLUGIN-SYSTEM.md) and [QUICK-REFERENCE.md](QUICK-REFERENCE.md).
+
 ## Status: Architecture Specification
 ## Date: 2026-04-24
 ## Scope: v1.1 First-Class Features & Extension Ecosystem

docs/extensions/EXTENSION-PLUGIN-SYSTEM.md

@@ -392,7 +392,7 @@ await app.register(apophis, {
 | `src/test/extension.test.ts` | Extension system tests |
 | `src/formula/evaluator.ts` | APOSTL evaluator with extension predicate resolution |
 | `src/domain/contract-validation.ts` | Passes extension registry to evaluator |
-| `src/test/petit-runner.ts` | Calls extension hooks |
+| `src/quality/petit-runner.ts` | Calls extension hooks |
 | `src/plugin/index.ts` | Creates and passes ExtensionRegistry |
 
 ---

docs/extensions/TIMEOUTS-REDIRECTS-CONCURRENCY.md

@@ -1,4 +1,4 @@
-# APOPHIS v1.0 Extension Specification: Timeouts and Redirects
+# APOPHIS Extension Specification: Timeouts and Redirects
 
 ## Document Information
 - **Version**: 1.0
@@ -64,6 +64,8 @@ fastify.get('/slow-endpoint', {
 
 When a timeout is configured, `executeHttp` uses an abortable timer where supported. The timeout must be cleared in `finally`; Fastify injection may continue running after timeout if the underlying transport cannot be cancelled.
 
+> **Note**: The code examples in this section are illustrative representations of the timeout, redirect, and concurrency mechanisms. The actual implementation may differ in detail.
+
 ```typescript
 // In src/infrastructure/http-executor.ts
 if (timeoutMs && timeoutMs > 0) {