chore: fork dsh-better-sidebar v0.18.0 as dsh-apes-sidebar v1.0.0

- Rename dsh-better-sidebar → dsh-apes-sidebar across 74 files (262 occurrences)
- Bump version 0.18.0 → 1.0.0 (package.json + dsh.plugin.json + SIDEBAR_SERVICE_VERSION)
- Add forkedFrom metadata to package.json (upstream pin: commit 9e1a034)
- Add fork notice banner to README.md (MIT attribution preserved)
- Keep original MIT copyright (c) 2026 dsh-external
- Full gate green: typecheck + build (6 bundles) + test (1241 passed / 9 skipped)

src/invariant.ts

@@ -1,15 +1,15 @@
 /**
- * Package-owned invariant companion for `dsh-better-sidebar`.
- * @module dsh-better-sidebar/invariant
+ * Package-owned invariant companion for `dsh-apes-sidebar`.
+ * @module dsh-apes-sidebar/invariant
  */
 
 /* jscpd:ignore-start */
 import type { Context } from './context-types.ts'
 
-const PACKAGE_NAME = 'dsh-better-sidebar'
+const PACKAGE_NAME = 'dsh-apes-sidebar'
 
 /** Cordis companion plugin name. */
-export const name = 'dsh-better-sidebar-invariant'
+export const name = 'dsh-apes-sidebar-invariant'
 /** Service required before the companion can reserve package ownership. */
 export const inject = ['invariants']