chore(main): release rea-agents 6.8.0 (#5004)

* chore(main): release rea-agents 6.8.0

* docs(release): finalize contributor-aware 6.8.0 notes

* docs(release): pin the JSON Lines migration guide

* docs(release): cover the remaining reviewed user-facing fixes

* docs(release): refresh the reviewed contribution snapshot

* docs(release): correct migration references and gateway scope

Preserve the concurrent 6.8.0 editorial draft and verified credits. Cite the actual keyed-archive UID migration, move CLI version and superclass-classification references to their matching entries, retain unknown-date plist behavior, and avoid implying live gateway acceptance. Existing author readiness declarations remain unchanged.

* docs(release): include nine newly merged changes in 6.8.0

* docs(release): include recorded write views in 6.8.0

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>

server.json

@@ -8,13 +8,13 @@
     "url": "https://github.com/morluto/rea",
     "source": "github"
   },
-  "version": "6.7.0",
+  "version": "6.8.0",
   "packages": [
     {
       "registryType": "npm",
       "registryBaseUrl": "https://registry.npmjs.org",
       "identifier": "rea-agents",
-      "version": "6.7.0",
+      "version": "6.8.0",
       "runtimeHint": "npx",
       "transport": {
         "type": "stdio"