Add platform showcase, blog post, and refactor project structure (#2888)

* feat: add agent platform showcase and blog post

Add a complete platform example (Users, Posts, Comments, Mail) that
mirrors micro/blog, demonstrating how existing microservices become
AI-accessible through MCP with zero code changes.

Includes blog post "Your Microservices Are Already an AI Platform"
walking through real agent workflows: signup, content creation,
commenting, tagging, and cross-service messaging.

https://claude.ai/code/session_01GkduEhcrqcG45rdfYh8dAc

* refactor: rename handler types to drop redundant Service suffix

UserService → Users, PostService → Posts, CommentService → Comments,
MailService → Mail. Matches micro/blog naming convention.

https://claude.ai/code/session_01GkduEhcrqcG45rdfYh8dAc

* refactor: consolidate top-level directories, reduce framework bloat

Move internal/non-public packages behind internal/ or into their
parent packages where they belong:

- deploy/ → gateway/mcp/deploy/ (Helm charts belong with the gateway)
- profile/ → service/profile/ (preset plugin profiles are a service concern)
- scripts/ → internal/scripts/ (install script is not public API)
- test/ → internal/test/ (test harness is not public API)
- util/ → internal/util/ (internal helpers shouldn't be imported externally)

Also fixes CLAUDE.md merge conflict markers and updates project
structure documentation.

All import paths updated. Build and tests pass.

https://claude.ai/code/session_01GkduEhcrqcG45rdfYh8dAc

* refactor: redesign model package to match framework conventions

Rename model.Database interface to model.Model (consistent with
client.Client, server.Server, store.Store). Remove generics in
favor of interface{}-based API with reflection.

Key changes:
- model.Model interface: Register once, CRUD infers table from type
- DefaultModel + NewModel() + package-level convenience functions
- Schema registered via Register(&User{}), no per-call schema passing
- Memory implementation as default (in model package, like store)
- memory/sqlite/postgres backends updated for new interface
- protoc-gen-micro generates RegisterXModel() instead of generic factory
- All docs, blog, and README updated

https://claude.ai/code/session_01GkduEhcrqcG45rdfYh8dAc

* docs: clarify blog post 7 uses modular monolith, not multi-service

Blog post 7 demonstrated all handlers in a single process but framed
it as microservices without acknowledging the architectural difference.

- Add "A Note on Architecture" section explaining this is a modular
  monolith demo and pointing to micro/blog for multi-service
- Clarify that handlers can be broken out into separate services later
- Fix "service registry" language to match single-process reality
- Restructure "Adding MCP to Existing Services" to distinguish the
  in-process approach from registry-based gateway options
- Update closing to acknowledge both paradigms
- Fix README type names (&CommentService{} -> &Comments{}, etc.)

https://claude.ai/code/session_01GkduEhcrqcG45rdfYh8dAc

* docs: add Micro Chat to website showcase

https://claude.ai/code/session_01GkduEhcrqcG45rdfYh8dAc

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: asim

internal/website/index.html

@@ -259,6 +259,18 @@ <h1>Go Micro</h1>
       <div class="showcase">
         <h2>Built with Go Micro</h2>
         <div class="showcase-grid">
+          <div class="showcase-item">
+            <h3>
+              <span>💬</span>
+              <a href="https://github.com/micro/chat" target="_blank" rel="noopener">Micro Chat</a>
+            </h3>
+            <p>Group chat with AI. A real-time messaging app built on Go Micro with integrated AI agents.</p>
+            <div class="showcase-tags">
+              <span class="showcase-tag">Micro</span>
+              <span class="showcase-tag">Chat</span>
+              <span class="showcase-tag">AI</span>
+            </div>
+          </div>
           <div class="showcase-item">
             <h3>
               <span>📝</span>