* fix(docs): resolve documentation search in documentation header
* fix: move pagefind from devDependencies to dependencies
* fix(docs): inline pagefind in build script for reliable CI execution
Merge postbuild script into build command to ensure pagefind runs
in all CI environments (Vercel, Turbo, yarn workspace).
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Co-authored-by: Romit <romitgabani1.work@gmail.com>
