docs: remove empty Frameworks section (both frameworks now in Capabilities)

- Delete src/docs/Frameworks/ folder (now empty after Agentic-Development and Process-PSModule moved to Capabilities)
- Remove Frameworks nav group from src/zensical.toml
- Update src/docs/index.md via Update-DocumentationIndex.ps1
- All validation passing: links resolve, markdownlint clean (111 files, 0 issues)

Both frameworks now documented consistently under Capabilities spec-and-design model.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: MariusStorhaug

src/docs/Frameworks/index.md

@@ -49,7 +49,6 @@ Each area below carries its own index. Start here, read the descriptions, and fo
 | [Ways of Working](Ways-of-Working/index.md) | How work happens across the ecosystem — for humans and agents alike. |
 | [Coding Standards](Coding-Standards/index.md) | The shared baseline every repository inherits, and the per-language standards that build on it. |
 | [Capabilities](Capabilities/index.md) | The capabilities the ecosystem builds, each documented by a spec (why and what) and a design (how and what). |
-| [Frameworks](Frameworks/index.md) | The complete, end-to-end frameworks the ecosystem ships — opinionated automation a project adopts wholesale to go from source to shipped. |
 | [Dictionary](Dictionary/index.md) | Shared vocabulary for the MSX ecosystem — the terms a reader or agent meets across these docs. |
 
 <!-- INDEX:END -->

src/docs/index.md

@@ -161,9 +161,6 @@ nav = [
       {"Memory Repository Template" = "Capabilities/agentic-development/memory-template.md"},
     ]},
   ]},
-  {"Frameworks" = [
-    "Frameworks/index.md",
-  ]},
   {"Dictionary" = "Dictionary/index.md"},
 ]