Add session-bound personal profile editing

CHANGELOG.md

@@ -2,6 +2,22 @@
 
 # Changelog
 
+## v0.1.0-preview.26 — 2026-09-05
+
+- Add optional self-profile readers and revision-checked username/display-name
+  writes. Recheck the active session, account and expected revision atomically
+  with a secret-free audit; preserve immutable user identity and ownership.
+- Username edits revoke other sessions but preserve the acting session. A
+  password-confirmed write can require the exact verified credential hash,
+  rejecting a concurrent password reset. Applications own reauthentication,
+  operation-bound passkey approval, CSRF/origin checks and rate/concurrency limits.
+- Add explicit SQLite schema 11 for monotonic profile revisions. Existing rows
+  begin at revision 1; startup with migrations disabled rejects older schemas.
+  Do not run older writers against schema 11 as a database rollback strategy.
+- Email changes are deliberately absent; pending-address verification and mail
+  delivery are separate work. Test invalid/restricted sessions, collisions,
+  concurrent/stale edits, audit rollback, restart and schema-10 migration.
+
 ## v0.1.0-preview.25 — 2026-09-05
 
 - Add optional, credential-free user and organization directory readers for