docs(release): recount the 0.4.6 community PRs (16, not 23-copied-forward or 4)

RELEASE.md contradicted itself: line 16 said "four merged pull requests" (only
tonight's four integration merges), the Thanks said "23 community pull requests
landed in this release" (the 0.4.5 number copied forward), and the historical
tail correctly says those 23 landed in v0.4.5.

Recounted from the actual 0.4.6 changeset (main b9f34e7..release tip, linear so
it is exactly this release). Method: a community PR is one authored by someone
other than the founder (@chaitanyagiri) whose work landed here, whether merged
or re-implemented. That gives 16 community PRs from 13 contributors:
#156 #205 #213 #225 #242 #243 #248 #270 #271 #282 #284 #286 #310 #317 #323 #339.
Fifteen landed as merges; #213 (Arabic) landed by re-implementation, which is why
a merge-only count returns 15 and misses it.

Line 16 and the Thanks now both say 16, the Thanks names all 13 contributors
inline so the credit matches the count, and the 0.4.5 sections (its intro and its
historical table) are left at 23 untouched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LDbmAwrgtGskFGCRkYZBx4

Author: chaitanyagiri

RELEASE.md

@@ -13,7 +13,7 @@ Messaging, routing, and remembering, coordinated by your clone, Michael, who you
 **The release that speaks your language and updates itself.** The interface now runs in Chinese and
 Arabic, the auto-updater downloads and installs a new build end to end, fonts ship inside the app so
 a blocked network never leaves you on a blank window, and the way agent engines are launched is
-hardened. Plus the Settings rework, an IME fix for CJK typing, and four merged pull requests.
+hardened. Plus the Settings rework, an IME fix for CJK typing, and 16 community pull requests.
 
 - **The interface speaks Chinese and Arabic.** Pick zh-CN or Arabic in Settings — every string is
   translated, with nothing falling back to English, and the terminals read right to left. Some
@@ -47,8 +47,15 @@ Founders' Wall get a month of Pro free, then 50% off the annual plan.
 
 ### Thanks
 
-23 community pull requests landed in this release. Thank you to everyone who opened one,
-reviewed one, or filed the bug that led to one. The full list is in CHANGELOG.md.
+16 community pull requests from 13 contributors landed in this release. Thank you to
+[@aaroncoville](https://github.com/aaroncoville), [@abo123v-glitch](https://github.com/abo123v-glitch),
+[@BUGHUNTER-SACHIN](https://github.com/BUGHUNTER-SACHIN), [@djbiz](https://github.com/djbiz),
+[@gpechieu](https://github.com/gpechieu), [@HsienW](https://github.com/HsienW),
+[@HundredBillion](https://github.com/HundredBillion), [@jhinzzz](https://github.com/jhinzzz),
+[@L422Y](https://github.com/L422Y), [@LavaDMan](https://github.com/LavaDMan),
+[@raifemre](https://github.com/raifemre), [@savvaskoualis](https://github.com/savvaskoualis) and
+[@Schopenhauer-loves-Hegel](https://github.com/Schopenhauer-loves-Hegel), and to everyone who
+reviewed a pull request or filed the bug that led to one.
 
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