[sanskarIN]

Context

After #77 published the v0.0.6-alpha.2 English/Hindi release pages, some historical tutorials still described alpha.1, alpha.3 or alpha.5 as the latest published compiler. That could send new users to stale downloads and suggest non-existent version compatibility.

Changes

• Update the English/Hindi compatibility matrix to describe the new Rust-only bounded caches, preserving alpha.1 symbol/CLI and the historical alpha.1 reference baseline.
• Direct new installs to the published alpha.2 archive/checksum page from the historical alpha.1 installation and alpha.3/alpha.4 quickstart pages.
• Clarify the alpha.2 typed-binding guide, alpha.4 CLI, learning path and compiler-evidence overview in both locales, keeping every exact tagged fixture and executable command unchanged.
• Distinguish the latest published compiler from the tag originally used to verify the lesson.

Verification

Documentation CI, released-compiler conformance, historical provenance, TypeScript site rendering, link integrity, bilingual parity and offline/browser checks. Do not merge without a green result. No stable release created.

Follow-up to #77 and #70.