docs: complete memory model section and optimize readme formatting

README.md

@@ -31,6 +31,7 @@ This project is a high-concurrency, cross-platform string processing and spell-c
 ## Table of Contents
 
 * [Why This Exists](#why-this-exists)
+* [Long-Term Platform Vision](#long-term-platform-vision)
 * [System Architecture](#system-architecture)
 * [Governance and Decision Tracking](#governance-and-decision-tracking)
 * [CI/CD & Deployment Pipeline](#cicd--deployment-pipeline)
@@ -79,6 +80,31 @@ The goal is to demonstrate:
 
 ---
 
+## Long-Term Platform Vision
+
+While the current implementation focuses on string transformation and spell-check processing, the broader architectural goal of this project is to establish a reusable high-performance text and document-processing platform capable of supporting significantly more complex workloads in the future.
+
+The current processing engine intentionally remains lightweight because the primary engineering objective is validating the underlying interoperability architecture, deterministic memory ownership model, cross-platform ABI boundary, and production-grade orchestration pipeline that will later support more computationally intensive processing systems.
+
+This architecture is designed to evolve toward workloads such as:
+
+* Large-scale document transformation pipelines
+* Tokenization and parsing engines
+* Grammar and spell-analysis systems
+* Streaming text-processing workflows
+* Unicode normalization and encoding conversion
+* Search indexing and text extraction
+* Structured document ingestion (PDF/DOCX/TXT)
+* SIMD-accelerated string and buffer operations
+* Plugin-based native processing modules
+* Distributed background processing pipelines
+
+The native C++ execution layer provides deterministic control over memory ownership, allocation behavior, and low-level processing pipelines, while the managed .NET orchestration layer provides platform portability, observability, authentication, deployment orchestration, and API lifecycle management.
+
+Rather than optimizing specifically for simple case conversion, the project focuses on validating a scalable polyglot execution architecture intended for future high-throughput document and text-processing systems.
+
+---
+
 ## System Architecture
 
 This project is built to safely expose high-performance C++ logic to a managed .NET web stack. We focus on a clear separation between native processing, API orchestration, and frontend delivery to keep the native code fast and the web layer stable.