feat: flip swap mechanism — MD as primary, RST as override (Phase 1)

This is the first of three phases inverting the per-page swap mechanism
so MD becomes the canonical primary and RST becomes the rare override.

Phase 1 — file renames + conf.py exclude_patterns flip only:
- Rename docs/**/md-<stem>.md to docs/**/<stem>.md (drop md- prefix)
  for all 254 stems previously listed in docs/_swap.txt
- Rename docs/**/<stem>.rst to docs/**/rst-<stem>.rst (add rst- prefix)
  for the same 254 stems
- Repurpose docs/_swap.txt as docs/_rst_overrides.txt; initially empty
  comment-only since no pages need the RST fallback right now
- conf.py exclude_patterns flipped: rst-*.rst is now excluded by default
  instead of md-*.md
- conf.py runtime-artifact references updated to _rst_override_state.json
  and _md_exclude.txt (Phase 2 will rewrite swap_sources.py to produce
  these names; for now no swap script runs because overrides list is empty)

Phase 2 (next commit on this branch) will rewrite scripts/swap_sources.py
with inverted rename direction, delete scripts/import_myst.py + tests, and
update tests/test_swap_sources.py for the new semantics.

Phase 3 will be the cleanup pass and ready-for-review flip.

Generated by robots https://vyos.io

1 files changed, 0 insertions, 113 deletions

diff --git a/docs/md-index.md b/docs/md-index.md
deleted file mode 100644
index 359fea44..00000000
--- a/docs/md-index.md
+++ /dev/null
@@ -1,113 +0,0 @@
-(index)=
-
-# VyOS User Guide
-
-::::::{grid} 3
-:gutter: 2
-
-:::::{grid-item-card} Get / Build VyOS
-
-Quickly {ref}`Build<contributing/build-vyos:build vyos>`
-your own Image or take a look at how to
-{ref}`download<installation/install:download>`
-a free or supported version.
-:::::
-
-:::::{grid-item-card} Install VyOS
-
-Read about how to install VyOS on
-{ref}`Bare Metal<installation/install:installation>`
-or in a {ref}`VM <installation/virtual/index:Virtual Environments>`
-and how to use an image with the usual
-{ref}`cloud<installation/cloud/index:Cloud Environments>`
-providers
-:::::
-
-:::::{grid-item-card} Configuration and Operation
-
-Use the {ref}`Quickstart Guide<quick-start:Quick Start>`,
-to have a fast overview. Or go deeper and set up
-{ref}`advanced routing<configuration/protocols/index:protocols>`,
-{ref}`VRFs<configuration/vrf/index:vrf>`, or
-{ref}`VPNs<configuration/vpn/index:vpn>` for example.
-:::::
-
-:::::{grid-item-card} Automate
-
-Integrate VyOS in your automation Workflow with
-{ref}`Ansible<vyos-ansible>`,
-have your own {ref}`local scripts<command-scripting>`,
-or configure VyOS with the
-{ref}`HTTPS-API<vyosapi>`.
-:::::
-
-:::::{grid-item-card} Examples
-
-Get some inspiration from the
-{ref}`Blueprints <configexamples/index:Configuration Blueprints>`
-to build your infrastructure.
-:::::
-
-:::::{grid-item-card} Contribute and Community
-
-There are many ways to contribute to the project.
-Add missing parts or improve the
-{ref}`Documentation<documentation:Write Documentation>`.
-
-Discuss in [Slack](https://slack.vyos.io/)
-or the [Forum](https://forum.vyos.io).
-
-Or you can pick up a [Task](https://vyos.dev/)
-and fix the
-{ref}`code<contributing/development:development>`.
-:::::
-::::::
-
-```{toctree}
-:hidden: true
-:maxdepth: 1
-
-introducing/about
-introducing/history
-```
-
-```{toctree}
-:caption: First Steps
-:hidden: true
-:maxdepth: 2
-
-installation/index
-quick-start
-cli
-```
-
-```{toctree}
-:caption: Adminguide
-:hidden: true
-:maxdepth: 2
-
-configuration/index
-operation/index
-automation/index
-troubleshooting/index
-configexamples/index
-vpp/index
-```
-
-```{toctree}
-:caption: Development
-:hidden: true
-:maxdepth: 2
-
-contributing/index
-```
-
-```{toctree}
-:caption: Misc
-:hidden: true
-:maxdepth: 2
-
-documentation
-coverage
-copyright
-```