feat(v2): restore in-page search/tag filter & drop redundant Markdown TOC

Fix: the per-page resource search box with maturity tag-pills stopped
appearing after navigation.instant was enabled (DOMContentLoaded fires only
on first SPA load). Reworked v2_filter.js to init via Material's document$
observable with a DOMContentLoaded fallback, guard double-injection, bind the
clickable-tag delegation once, and add a no-results state. Cache-bust ?v=2.9.12.

Change: removed the duplicated Markdown "## Table of Contents" from all 156 V2
content pages and from v2_optimizer.py — it forced hundreds of links of scroll
on large pages. Replaced by Material's native sticky "On this page" TOC
(removed toc.integrate, added toc.follow). tags.md keeps its TOC (it is an index).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

v2-docs/java_frameworks.md

@@ -6,120 +6,6 @@
 !!! info "Architectural Context"
     Detailed reference for Java and Java Programming Models. Open Source Microservices Frameworks in the context of Developer Ecosystem.
 
-## Table of Contents
-
-1. [Cloud Native](#cloud-native)
-  - [Containers](#containers)
-    - [Evolution](#evolution)
-1. [Cloud Native Architecture](#cloud-native-architecture)
-  - [Microservices Migration](#microservices-migration)
-    - [Case Study](#case-study)
-1. [Cloud-Native Platforms](#cloud-native-platforms)
-  - [Java Microservices](#java-microservices)
-    - [API Security](#api-security)
-    - [Frameworks](#frameworks)
-1. [Enterprise Java](#enterprise-java)
-  - [Cloud Migration](#cloud-migration)
-    - [Modernization](#modernization)
-    - [Namespace Migration](#namespace-migration)
-  - [Framework Selection](#framework-selection)
-    - [Developer Education](#developer-education)
-    - [Market Analysis](#market-analysis)
-  - [JBoss EAP](#jboss-eap)
-    - [Development Environment](#development-environment)
-  - [MicroProfile](#microprofile)
-    - [Framework Standard](#framework-standard)
-    - [Industry Trends](#industry-trends)
-    - [Specification](#specification)
-  - [Quarkus](#quarkus)
-    - [Spring Compatibility](#spring-compatibility)
-  - [Runtimes](#runtimes)
-    - [WildFly Swarm](#wildfly-swarm)
-1. [Event-Driven Architecture](#event-driven-architecture)
-  - [Distributed Transactions](#distributed-transactions)
-    - [Saga Pattern](#saga-pattern)
-  - [Kafka Integration](#kafka-integration)
-    - [Microservices](#microservices)
-    - [Spring Kafka](#spring-kafka)
-1. [Java Cloud Native](#java-cloud-native)
-  - [Quarkus](#quarkus-1)
-    - [Core Runtime](#core-runtime)
-    - [Migration](#migration)
-  - [Spring Boot](#spring-boot)
-    - [Kubernetes Deployment](#kubernetes-deployment)
-    - [Microservices Architecture](#microservices-architecture)
-    - [Microservices Security](#microservices-security)
-  - [Spring Cloud](#spring-cloud)
-    - [API Gateway](#api-gateway)
-    - [Configuration Management](#configuration-management)
-    - [Core Framework](#core-framework)
-    - [Kubernetes Integration](#kubernetes-integration)
-    - [Secrets Management](#secrets-management)
-1. [Java Platform](#java-platform)
-  - [Concurrency](#concurrency)
-    - [Project Loom](#project-loom)
-1. [Kubernetes and Cloud Native](#kubernetes-and-cloud-native)
-  - [Microservices](#microservices-1)
-    - [Best Practices](#best-practices)
-  - [Observability](#observability)
-    - [Logging](#logging)
-  - [Scaling](#scaling)
-    - [Autoscaling](#autoscaling)
-  - [Service Mesh](#service-mesh)
-    - [Istio Integration](#istio-integration)
-1. [Modern Java](#modern-java)
-  - [Automation](#automation)
-    - [Business Rules](#business-rules)
-  - [Frameworks](#frameworks-1)
-    - [Database Access](#database-access)
-    - [Kubernetes Integration](#kubernetes-integration-1)
-    - [Logging](#logging-1)
-    - [MicroProfile](#microprofile-1)
-    - [Migrations](#migrations)
-    - [Quarkus](#quarkus-2)
-    - [Quarkus vs Spring](#quarkus-vs-spring)
-    - [Reactive Programming](#reactive-programming)
-    - [Spring Cloud](#spring-cloud-1)
-  - [Performance](#performance)
-    - [Benchmarking](#benchmarking)
-    - [Concurrency](#concurrency-1)
-    - [Testing](#testing)
-1. [Software Development](#software-development)
-  - [Business Automation](#business-automation)
-    - [Rule Engines](#rule-engines)
-  - [Cloud Native Java](#cloud-native-java)
-    - [Containerization](#containerization)
-    - [Kubernetes Deployment](#kubernetes-deployment-1)
-    - [Modernization](#modernization-1)
-  - [JVM Internals](#jvm-internals)
-    - [Garbage Collection](#garbage-collection)
-  - [Microservices Design](#microservices-design)
-    - [Interview Prep](#interview-prep)
-    - [Java Microservices](#java-microservices-1)
-  - [Spring Framework](#spring-framework)
-    - [Annotations](#annotations)
-1. [Spring Ecosystem](#spring-ecosystem)
-  - [Application Framework](#application-framework)
-    - [Release Analysis](#release-analysis)
-  - [Core Platform](#core-platform)
-    - [Developer Education](#developer-education-1)
-    - [Modernization](#modernization-2)
-    - [Optimization](#optimization)
-  - [GraalVM](#graalvm)
-    - [Native Image](#native-image)
-  - [Interoperability](#interoperability)
-    - [MicroProfile](#microprofile-2)
-  - [Microservices](#microservices-2)
-    - [Application Framework](#application-framework-1)
-  - [Observability](#observability-1)
-    - [Administration UI](#administration-ui)
-  - [Packaging](#packaging)
-    - [Deployment Formats](#deployment-formats)
-  - [Platform](#platform)
-    - [Core Framework](#core-framework-1)
-  - [Web Layer](#web-layer)
-    - [MVC](#mvc)
-
 ## Cloud Native
 
 ### Containers