Renumber 6.4.1→6.5, 6.5→6.6, 6.6→6.7, 6.7→6.8; update all cross-references

Author: workcontrolgit

blogs/series-6-ai-app-features/6.1-dotnet-ai-foundation.md

@@ -251,7 +251,7 @@ builder.Services.AddSharedInfrastructure(builder.Configuration);  // ← registe
 **Why three registrations for one object?** `OllamaApiClient` implements two interfaces from different libraries:
 
 * `IChatClient` (from `Microsoft.Extensions.AI`) — used by `OllamaAiService` for chat completions
-* `IOllamaApiClient` (from OllamaSharp) — used by `OllamaEmbeddingService` for embedding generation (introduced in Series 6.5)
+* `IOllamaApiClient` (from OllamaSharp) — used by `OllamaEmbeddingService` for embedding generation (introduced in Series 6.7)
 
 Registering the concrete type first as a singleton, then aliasing both interfaces to it, ensures both resolve to the same underlying instance — one HTTP connection, one model selection, shared across the app.
 

blogs/series-6-ai-app-features/6.2-dotnet-ai-hr-assistant.md

@@ -325,7 +325,7 @@ Every call to `POST /api/v1/ai/hr-insight`:
 
 If you add 10 new employees and ask "How many employees do we have?", the answer reflects the current count — not a cached snapshot from startup.
 
-**Performance note:** Each request makes two I/O calls — one database query and one Ollama inference. The database query is fast (milliseconds). Ollama inference with `llama3.2` typically takes 1–4 seconds on a modern laptop. Article 6.7 will add caching for repeated identical questions.
+**Performance note:** Each request makes two I/O calls — one database query and one Ollama inference. The database query is fast (milliseconds). Ollama inference with `llama3.2` typically takes 1–4 seconds on a modern laptop. Article 6.8 will add caching for repeated identical questions.
 
 ---
 

blogs/series-6-ai-app-features/6.3-angular-ai-chat-widget.md

@@ -441,7 +441,7 @@ src/app/
 │   ├── ai-assistant/      ← general chat
 │   ├── ai-hr-insight/     ← HR data-aware chat
 │   ├── ai-nl-search/      ← NL employee search (Article 6.4)
-│   └── ai-vector-search/  ← semantic position search (Article 6.5)
+│   └── ai-vector-search/  ← semantic position search (Article 6.6)
 ├── services/api/
 │   └── ai.service.ts      ← AiService (4 methods)
 └── app.routes.ts          ← nested ai children + backward-compat redirect
@@ -502,8 +502,8 @@ The refactoring from tabs to child routes mirrors how any growing feature sectio
 * [Build an HR AI Assistant That Knows Your Data](6.2-dotnet-ai-hr-assistant.md) — HR AI Assistant (Series 6.2)
 * **This Article** — Build a Dedicated AI Section in Angular with Submenu Navigation (Series 6.3)
 * [Natural Language Employee Search in Angular Material](6.4-angular-ai-nl-search.md) — NL Search Angular (Series 6.4)
-* [Natural Language Employee Search with LLM Query Parsing](6.4.1-dotnet-natural-language-search.md) — NL Search .NET backend (Series 6.4.1)
-* [Semantic Position Search with Vector Embeddings](6.5-angular-ai-vector-search.md) — Vector Search (Series 6.5)
+* [Natural Language Employee Search with LLM Query Parsing](6.5-dotnet-natural-language-search.md) — NL Search .NET backend (Series 6.5)
+* [Semantic Position Search with Vector Embeddings](6.6-angular-ai-vector-search.md) — Vector Search (Series 6.6)
 
 ---
 

blogs/series-6-ai-app-features/6.4-angular-ai-nl-search.md

@@ -31,10 +31,10 @@ This article is part of the **AngularNetTutorial** series. The full-stack tutori
 * **Article 6.1 complete** — `POST /api/v1/ai/chat` endpoint working
 * **Article 6.2 complete** — `POST /api/v1/ai/hr-insight` endpoint working
 * **Article 6.3 complete** — AI submenu in place, `ai-nl-search` component scaffolded, `AiService` with `nlEmployeeSearch()` method
-* **Article 6.4.1 (.NET) complete** — `POST /api/v1/ai/nl-employee-search` endpoint working (the backend for this feature)
+* **Article 6.5 (.NET) complete** — `POST /api/v1/ai/nl-employee-search` endpoint working (the backend for this feature)
 * **`AiEnabled: true`** in the API's `appsettings.json` for local testing
 
-> **Note:** The .NET endpoint for natural language employee search is documented in Article 6.4.1. If you are following this article first (to understand the Angular side), you can still build and run the component — it will show an error until the API endpoint exists.
+> **Note:** The .NET endpoint for natural language employee search is documented in Article 6.5. If you are following this article first (to understand the Angular side), you can still build and run the component — it will show an error until the API endpoint exists.
 
 ---
 
@@ -439,7 +439,7 @@ The LLM stays out of the data layer. It only translates human intent into the pa
 * [Build an HR AI Assistant That Knows Your Data](6.2-dotnet-ai-hr-assistant.md) — HR AI Assistant (Series 6.2)
 * [Build a Dedicated AI Section in Angular with Submenu Navigation](6.3-angular-ai-chat-widget.md) — AI Submenu (Series 6.3)
 * **This Article** — Natural Language Employee Search in Angular Material (Series 6.4)
-* [Semantic Position Search with Vector Embeddings](6.5-angular-ai-vector-search.md) — Vector Search (Series 6.5)
+* [Semantic Position Search with Vector Embeddings](6.6-angular-ai-vector-search.md) — Vector Search (Series 6.6)
 
 ---
 

…/6.4.1-dotnet-natural-language-search.md …es/6.5-dotnet-natural-language-search.mdblogs/series-6-ai-app-features/6.4.1-dotnet-natural-language-search.md renamed to blogs/series-6-ai-app-features/6.5-dotnet-natural-language-search.md blogs/series-6-ai-app-features/6.4.1-dotnet-natural-language-search.md renamed to blogs/series-6-ai-app-features/6.5-dotnet-natural-language-search.md

@@ -751,8 +751,8 @@ Using an LLM as a **query translator** — input: natural language, output: stru
 * [Build an HR AI Assistant That Knows Your Data](6.2-dotnet-ai-hr-assistant.md) — HR AI Assistant (Series 6.2)
 * [Build a Dedicated AI Section in Angular with Submenu Navigation](6.3-angular-ai-chat-widget.md) — AI Submenu (Series 6.3)
 * [Natural Language Employee Search in Angular Material](6.4-angular-ai-nl-search.md) — NL Search Angular (Series 6.4)
-* **This Article** — Natural Language Employee Search with LLM Query Parsing (Series 6.4.1 — .NET backend for 6.4)
-* [Cache Your AI Responses: Save Time and API Costs](6.7-dotnet-ai-response-caching.md) — AI Response Caching (Series 6.7)
+* **This Article** — Natural Language Employee Search with LLM Query Parsing (Series 6.5)
+* [Cache Your AI Responses: Save Time and API Costs](6.8-dotnet-ai-response-caching.md) — AI Response Caching (Series 6.8)
 
 ---
 

…features/6.5-angular-ai-vector-search.md …features/6.6-angular-ai-vector-search.mdblogs/series-6-ai-app-features/6.5-angular-ai-vector-search.md renamed to blogs/series-6-ai-app-features/6.6-angular-ai-vector-search.md blogs/series-6-ai-app-features/6.5-angular-ai-vector-search.md renamed to blogs/series-6-ai-app-features/6.6-angular-ai-vector-search.md

@@ -384,7 +384,7 @@ src/app/
 * [Build an HR AI Assistant That Knows Your Data](6.2-dotnet-ai-hr-assistant.md) — HR AI Assistant (Series 6.2)
 * [Build a Dedicated AI Section in Angular with Submenu Navigation](6.3-angular-ai-chat-widget.md) — AI Submenu (Series 6.3)
 * [Natural Language Employee Search in Angular Material](6.4-angular-ai-nl-search.md) — NL Search (Series 6.4)
-* **This Article** — Semantic Position Search with Vector Embeddings (Series 6.5)
+* **This Article** — Semantic Position Search with Vector Embeddings (Series 6.6)
 
 ---
 

…atures/6.6-dotnet-mssql-vector-search.md …atures/6.7-dotnet-mssql-vector-search.mdblogs/series-6-ai-app-features/6.6-dotnet-mssql-vector-search.md renamed to blogs/series-6-ai-app-features/6.7-dotnet-mssql-vector-search.md blogs/series-6-ai-app-features/6.6-dotnet-mssql-vector-search.md renamed to blogs/series-6-ai-app-features/6.7-dotnet-mssql-vector-search.md

@@ -727,8 +727,8 @@ The two search modes are **complementary**. Keyword filters are fast and precise
 * [Add an AI Chat Widget to Angular with Material Design](6.3-angular-ai-chat-widget.md) — AI Chat Widget (Series 6.3)
 * [AI-Generated Dashboard Insights in Angular Material](6.4-angular-ai-dashboard-insights.md) — Dashboard Insights (Series 6.4)
 * [Natural Language Employee Search with LLM Query Parsing](6.5-dotnet-natural-language-search.md) — NL Search (Series 6.5)
-* [Cache Your AI Responses: Save Time and API Costs](6.7-dotnet-ai-response-caching.md) — AI Caching (Series 6.7)
-* **This Article** — Semantic Position Search with SQL Server Vector Search (Series 6.6)
+* [Cache Your AI Responses: Save Time and API Costs](6.8-dotnet-ai-response-caching.md) — AI Caching (Series 6.8)
+* **This Article** — Semantic Position Search with SQL Server Vector Search (Series 6.7)
 
 ---
 

…atures/6.7-dotnet-ai-response-caching.md …atures/6.8-dotnet-ai-response-caching.mdblogs/series-6-ai-app-features/6.7-dotnet-ai-response-caching.md renamed to blogs/series-6-ai-app-features/6.8-dotnet-ai-response-caching.md blogs/series-6-ai-app-features/6.7-dotnet-ai-response-caching.md renamed to blogs/series-6-ai-app-features/6.8-dotnet-ai-response-caching.md

@@ -417,8 +417,8 @@ Each decorator wraps the previous one. The controller always calls `IAiChatServi
 * [Add an AI Chat Widget to Angular with Material Design](6.3-angular-ai-chat-widget.md) — AI Chat Widget (Series 6.3)
 * [AI-Generated Dashboard Insights in Angular Material](6.4-angular-ai-dashboard-insights.md) — Dashboard Insights (Series 6.4)
 * [Natural Language Employee Search with LLM Query Parsing](6.5-dotnet-natural-language-search.md) — NL Search (Series 6.5)
-* **This Article** — Cache Your AI Responses (Series 6.7)
-* [Semantic Employee Search with MSSQL 2025 Native Vector Search](6.6-dotnet-mssql-vector-search.md) — Vector Search (Series 6.6)
+* **This Article** — Cache Your AI Responses (Series 6.8)
+* [Semantic Employee Search with MSSQL 2025 Native Vector Search](6.7-dotnet-mssql-vector-search.md) — Vector Search (Series 6.7)
 
 ---