docs: mark ipip-512 as ratified and add implementation releases

- change status from proposal to ratified
- add GO: boxo v0.35.0 (kubo v0.38.1) implementation reference
- add JS: helia unixfs v6.0.1 (helia v6.0.1) implementation reference

Author: lidel

src/ipips/ipip-0512.md

@@ -1,7 +1,7 @@
 ---
 title: "IPIP-0512: Limit Identity CID Size to 128 Bytes in UnixFS Contexts"
 date: 2025-09-09
-ipip: proposal
+ipip: ratified
 editors:
   - name: Marcin Rataj
     github: lidel
@@ -74,7 +74,9 @@ The 128-byte limit was chosen based on several factors:
 
 3. **Practical Usage**: 128 bytes is sufficient for legitimate use cases (small inline data) while preventing abuse.
 
-4. **Implementation Precedent**: This limit has been implemented and tested in [ipfs/boxo#1018](https://github.com/ipfs/boxo/pull/1018) and included in Kubo 0.38 RC1 for broader testing.
+4. **Implementation Precedent**: This limit has been implemented in:
+   - GO: [Boxo v0.35.0](https://github.com/ipfs/boxo/releases/tag/v0.35.0) (shipped in [Kubo v0.38.1](https://github.com/ipfs/kubo/releases/tag/v0.38.1))
+   - JS: [Helia UnixFS v6.0.1](https://github.com/ipfs/helia/releases/tag/unixfs-v6.0.1) (shipped in [Helia v6.0.1](https://github.com/ipfs/helia/releases/tag/helia-v6.0.1))
 
 ### User benefit