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>

docs/installation.md

@@ -319,14 +319,14 @@ Register with the variable unset:
 <!-- x-release-please-start-version -->
 
 ```bash
-claude mcp add --scope local rea -- npx -y rea-agents@6.7.0 mcp
+claude mcp add --scope local rea -- npx -y rea-agents@6.8.0 mcp
 ```
 
 On native Windows, use the same project directory and wrap the package-runner
 shim so the stdio client can launch it:
 
 ```powershell
-claude mcp add --scope local rea -- cmd.exe /d /c npx -y rea-agents@6.7.0 mcp
+claude mcp add --scope local rea -- cmd.exe /d /c npx -y rea-agents@6.8.0 mcp
 ```
 
 <!-- x-release-please-end -->
@@ -620,8 +620,8 @@ hosted connector; see [its configuration](client-configuration.md#other-client-s
 
 `droid`, `dsh`, `kimi`, `qoder`, `trae`, `workbuddy`, and `zcode` require
 `rea-agents@6.5.0` or later. The 6.4.0 registry check above does not cover them.
-`freebuff` is not in a release yet - `6.7.0` is the latest - so it also needs a
-release containing it.
+`freebuff` requires `rea-agents@6.8.0` or later. Older releases reject
+`rea setup --client freebuff` as an unsupported client.
 
 See [client configuration and troubleshooting](client-configuration.md) for
 configuration paths, profiles, trust policies, and schema-limit workarounds.
@@ -1471,7 +1471,7 @@ For a client that requires manual configuration, use:
   "mcpServers": {
     "rea": {
       "command": "npx",
-      "args": ["-y", "rea-agents@6.7.0", "mcp"]
+      "args": ["-y", "rea-agents@6.8.0", "mcp"]
     }
   }
 }