feat(docs): version-bound release documentation served at /docs

Adds a docs pipeline so each release has a version-bound Markdown
document (docs/releases/vX.Y.Z.md) rendered publicly in the app:

- sync-release-docs.mjs copies docs/releases/*.md into the toolrate
  public dir and generates index.json before every dev/build
- /docs lists all releases; /docs/:version renders the sanitized
  Markdown (marked + DOMPurify, typography styles)
- template + workflow documented in docs/README.md
- current release (v0.6.0) documented as the first entry

pnpm-lock.yaml

@@ -42,6 +42,9 @@ catalogs:
     clsx:
       specifier: 2.1.1
       version: 2.1.1
+    dompurify:
+      specifier: 3.4.12
+      version: 3.4.12
     drizzle-orm:
       specifier: 0.45.2
       version: 0.45.2
@@ -51,6 +54,9 @@ catalogs:
     lucide-react:
       specifier: 1.28.0
       version: 1.28.0
+    marked:
+      specifier: 18.0.7
+      version: 18.0.7
     react:
       specifier: 19.2.8
       version: 19.2.8
@@ -585,6 +591,9 @@ importers:
       date-fns:
         specifier: 4.4.0
         version: 4.4.0
+      dompurify:
+        specifier: 'catalog:'
+        version: 3.4.12
       embla-carousel-react:
         specifier: 8.6.0
         version: 8.6.0(react@19.2.8)
@@ -600,6 +609,9 @@ importers:
       lucide-react:
         specifier: 'catalog:'
         version: 1.28.0(react@19.2.8)
+      marked:
+        specifier: 'catalog:'
+        version: 18.0.7
       next-themes:
         specifier: 0.4.6
         version: 0.4.6(react-dom@19.2.8(react@19.2.8))(react@19.2.8)
@@ -2101,6 +2113,9 @@ packages:
   '@types/serve-static@2.2.0':
     resolution: {integrity: sha512-8mam4H1NHLtu7nmtalF7eyBH14QyOASmcxHhSfEoRyr0nP/YdoesEtU+uSRvMe96TW/HPTtkoKqQLl53N7UXMQ==}
 
+  '@types/trusted-types@2.0.7':
+    resolution: {integrity: sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==}
+
   '@types/unist@3.0.3':
     resolution: {integrity: sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q==}
 
@@ -2470,6 +2485,9 @@ packages:
   detect-node-es@1.1.0:
     resolution: {integrity: sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==}
 
+  dompurify@3.4.12:
+    resolution: {integrity: sha512-zQvGet8Z2sWbQhCmfFz/T5QWH2oBmjnqK3qvOjaqaNLrLEF912WamU+ohnTp0TCep/MFVHpdJuCZEdFOdTnEFg==}
+
   drizzle-kit@0.31.10:
     resolution: {integrity: sha512-7OZcmQUrdGI+DUNNsKBn1aW8qSoKuTH7d0mYgSP8bAzdFzKoovxEFnoGQp2dVs82EOJeYycqRtciopszwUf8bw==}
     hasBin: true
@@ -2959,6 +2977,11 @@ packages:
     resolution: {integrity: sha512-Lf8ajvVNdRpzSNB4VegxNy7gjs8gU35l4b4+ET49LrQC5PKYwLZ72u60LeJ9gv3qiaesuYjJWCyVeQmv/QWKQw==}
     hasBin: true
 
+  marked@18.0.7:
+    resolution: {integrity: sha512-iDVQ5ldaiKXn6b2JroX5kgRfmwgqolW7NpaEzTl1k/2Zh1njIEN9yniyLV/mOvWwtsE8OGgkjsCYvijuPk1dtA==}
+    engines: {node: '>= 20'}
+    hasBin: true
+
   math-intrinsics@1.1.0:
     resolution: {integrity: sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==}
     engines: {node: '>= 0.4'}
@@ -5145,6 +5168,9 @@ snapshots:
       '@types/http-errors': 2.0.5
       '@types/node': 25.6.2
 
+  '@types/trusted-types@2.0.7':
+    optional: true
+
   '@types/unist@3.0.3': {}
 
   '@types/use-sync-external-store@0.0.6': {}
@@ -5412,6 +5438,10 @@ snapshots:
 
   detect-node-es@1.1.0: {}
 
+  dompurify@3.4.12:
+    optionalDependencies:
+      '@types/trusted-types': 2.0.7
+
   drizzle-kit@0.31.10:
     dependencies:
       '@drizzle-team/brocli': 0.10.2
@@ -5807,6 +5837,8 @@ snapshots:
       punycode.js: 2.3.1
       uc.micro: 3.0.0
 
+  marked@18.0.7: {}
+
   math-intrinsics@1.1.0: {}
 
   mdurl@2.1.0: {}