Add session-bound personal profile editing

docs/ADOPTION.md

@@ -21,3 +21,26 @@ template. Its private evidence, persistent bans, account data, route policy,
 operator exclusions, synchronization, and publishing workflow remain
 application-owned. Useful pressure from that migration may improve a general
 interface, but it may not smuggle EQL-specific policy into this module.
+
+## Optional personal-profile editing
+
+`auth.OwnProfileRepository` supports a narrow self-service boundary independently
+of instance-directory authorization. Load the profile using the current session
+digest; derive the target from that result. Normalize one username or display
+name using `auth.NormalizeProfileValue`. Never decode an HTTP body directly into
+`auth.ProfileEdit`, which carries trusted identity and credential-check state.
+
+Require CSRF/origin validation for browser writes and rate-limit credential work.
+For username changes, verify the current password (supply its hash as
+`ExpectedPasswordHash`) or consume an exact operation-bound passkey approval;
+enforce any additional authentication policy your application requires. Include
+the session, user, value and expected profile revision in the passkey binding.
+The SQLite transaction rechecks session/account/revision and any verified hash,
+updates one field, revokes other sessions for username edits, and appends audit.
+Do not log the command or include secret material in its audit.
+
+Schema 11 adds `profile_revision` without changing stable identity keys. Run an
+explicit migration before starting an adopter with automatic migration disabled.
+Keep the pre-migration backup; adjacent older binaries are not approved writers
+for the migrated schema. Email-change enrollment/confirmation is not implemented
+by this interface and must not be simulated with an unverified direct update.

docs/DOGFOOD.md

@@ -8,6 +8,18 @@ application concern belongs in the shared module.
 
 ## Gamertan accounts and commerce
 
+- Personal identity editing is not instance administration. `OwnProfileRepository`
+  derives self-access from the active session; `ProfileEdit` is a trusted internal
+  command, never a browser request model. SQLite schema 11 adds a monotonic
+  revision because timestamps alone cannot distinguish two edits in one second.
+  Session/account/revision checks, mutation and audit share one write transaction.
+  Username edits invalidate other sessions without changing immutable IDs,
+  memberships, credentials, orders or provider billing identities. A password
+  proof binds the verified hash into that transaction; passkey proofs must bind
+  the exact user/session/field/value/revision before calling it. The application
+  chooses account-specific reauthentication and owns its credential-work limits.
+  Email requires a separate verified change protocol, not another accepted field.
+
 - Instance operators need all-user/all-organization directories, not a staff
   roster or implicit membership in every business. Optional bounded readers now
   expose identity/profile records without credentials, independent of membership.
@@ -47,8 +59,8 @@ application concern belongs in the shared module.
   policy; there is no new database schema or commerce dependency in Foundations.
 
 - The account email remains required and unique. Gamertan uses normalized
-  email as the canonical login identifier and keeps username as a stable public
-  identity. Until a mail package exists, the application must not describe an
+  email as the canonical login identifier; the immutable user ID, not the editable
+  username, owns account relationships. Until a mail package exists, it must not describe an
   address as verified merely because it was entered during registration.
 - Password authentication is sufficient for an ordinary customer base
   session. Privileged application actions use an exact operation binding with

docs/GETTING_STARTED.md

@@ -26,7 +26,7 @@ The packages are ordinary Go imports. Pin the current preview and verify its
 module checksum:
 
 ```bash
-go get gamertan.com/web/requestmeta@v0.1.0-preview.25
+go get gamertan.com/web/requestmeta@v0.1.0-preview.26
 go mod verify
 ```