Add MkDocs documentation: architecture, deployment, development, decisions

mkdocs.yml

@@ -0,0 +1,39 @@
+site_name: BincioWiki — Developer Docs
+site_description: Technology stack, architecture, and operational notes for bincio_wiki
+site_url: ""
+docs_dir: docs
+
+nav:
+  - Overview: index.md
+  - Architecture:
+    - System overview: architecture/overview.md
+    - Content model: architecture/content-model.md
+    - Edit sidecar: architecture/edit-sidecar.md
+    - Authentication & invites: architecture/auth.md
+  - Deployment:
+    - VPS setup: deployment/vps.md
+    - Daily operations: deployment/operations.md
+  - Development:
+    - Getting started: development/getting-started.md
+  - Design decisions:
+    - Language / i18n: decisions/lingua.md
+    - Content location: decisions/content-location.md
+
+theme:
+  name: material
+  palette:
+    scheme: slate
+    primary: blue
+  features:
+    - navigation.sections
+    - navigation.expand
+    - content.code.copy
+
+markdown_extensions:
+  - admonition
+  - pymdownx.details
+  - pymdownx.superfences
+  - pymdownx.highlight:
+      anchor_linenums: true
+  - toc:
+      permalink: true