chore(ci): expand dependabot ignores for docs Astro-ecosystem majors (refs #115)

.github/dependabot.yml

@@ -38,12 +38,44 @@ updates:
           - patch
           - minor
     ignore:
-      # Astro majors are blocked on the Starlight/Tailwind coordinated
-      # migration tracked in #115. Remove this entry once that migration
-      # lands so Dependabot can resume bumping astro majors.
+      # The Astro/Starlight/Tailwind/Zod coordinated migration is tracked
+      # in #115. Every entry below is blocked because the target release
+      # can't land solo — a Starlight minor bump requires an aligned astro
+      # major (the current 0.41.x line peer-deps the current astro major);
+      # `@astrojs/tailwind` is being dropped for the Vite
+      # `@tailwindcss/vite` plugin path; `@astrojs/starlight-tailwind@^5`
+      # requires Tailwind v4; and the matching astro major transitively
+      # pulls `zod@^4` via `astro:content`. Keeping them as drive-by
+      # Dependabot PRs just burns cycles — see the 2026-08-13 flood: #126
+      # (starlight), #128 (zod), #130 (starlight-tailwind, apps/docs),
+      # #131 (starlight-tailwind, root), #133 (astrojs/react), #134
+      # (tailwindcss). Remove the matching entry as each dep lands during
+      # the #115 migration.
       - dependency-name: astro
         update-types:
           - version-update:semver-major
+      # @astrojs/starlight ships on a 0.x cadence, so Dependabot classifies
+      # its breaking releases as semver-minor rather than semver-major.
+      # Ignore both to keep the grouped minor PR from re-surfacing #126.
+      - dependency-name: "@astrojs/starlight"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor
+      - dependency-name: "@astrojs/starlight-tailwind"
+        update-types:
+          - version-update:semver-major
+      - dependency-name: "@astrojs/react"
+        update-types:
+          - version-update:semver-major
+      - dependency-name: "@astrojs/tailwind"
+        update-types:
+          - version-update:semver-major
+      - dependency-name: tailwindcss
+        update-types:
+          - version-update:semver-major
+      - dependency-name: zod
+        update-types:
+          - version-update:semver-major
 
   # Bun workspace root — resolves the transitive graph for every
   # packages/*, integrations/*, tooling/*, and apps/* manifest via the
@@ -81,3 +113,30 @@ updates:
       - dependency-name: "@cloudflare/workers-types"
         update-types:
           - version-update:semver-major
+      # The docs Astro-ecosystem majors tracked in #115 also surface here
+      # via the shared root `bun.lock` (e.g. #131 was
+      # `@astrojs/starlight-tailwind` at root, not /apps/docs). Mirror the
+      # /apps/docs ignore list so the same coordinated migration blocks
+      # both scopes. Remove each entry as its dep lands during #115.
+      - dependency-name: astro
+        update-types:
+          - version-update:semver-major
+      - dependency-name: "@astrojs/starlight"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor
+      - dependency-name: "@astrojs/starlight-tailwind"
+        update-types:
+          - version-update:semver-major
+      - dependency-name: "@astrojs/react"
+        update-types:
+          - version-update:semver-major
+      - dependency-name: "@astrojs/tailwind"
+        update-types:
+          - version-update:semver-major
+      - dependency-name: tailwindcss
+        update-types:
+          - version-update:semver-major
+      - dependency-name: zod
+        update-types:
+          - version-update:semver-major