UI: password change enforcement + migration recovery

- Web UI admin password reset now enforces admin role
  server-side (was cookie-auth + CSRF only; any logged-in
  user could previously reset any account's password)
- Added self-service password change UI at GET/PUT /profile:
  current_password + new_password + confirm_password;
  server-side equality check; lockout + Argon2id verification;
  revokes all other sessions on success
- password_change_form.html fragment and profile.html page
- Nav bar actor name now links to /profile
- policy: ActionChangePassword + default rule -7 allowing
  human accounts to change their own password
- openapi.yaml: built-in rules count updated to -7

Migration recovery:
- mciasdb schema force --version N: new subcommand to clear
  dirty migration state without running SQL (break-glass)
- schema subcommands bypass auto-migration on open so the
  tool stays usable when the database is dirty
- Migrate(): shim no longer overrides schema_migrations
  when it already has an entry; duplicate-column error on
  the latest migration is force-cleaned and treated as
  success (handles columns added outside the runner)

Security:
- Admin role is now validated in handleAdminResetPassword
  before any DB access; non-admin receives 403
- handleSelfChangePassword follows identical lockout +
  constant-time Argon2id path as the REST self-service
  handler; current password required to prevent
  token-theft account takeover

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

PROGRESS.md

@@ -4,6 +4,59 @@ Source of truth for current development state.
 ---
 All phases complete. **v1.0.0 tagged.** All packages pass `go test ./...`; `golangci-lint run ./...` clean.
 
+### 2026-03-12 — Checkpoint: password change UI enforcement + migration recovery
+
+**internal/ui/handlers_accounts.go**
+- `handleAdminResetPassword`: added server-side admin role check at the top of
+  the handler; any authenticated non-admin calling this route now receives 403.
+  Previously only cookie validity + CSRF were checked.
+
+**internal/ui/handlers_auth.go**
+- Added `handleProfilePage`: renders the new `/profile` page for any
+  authenticated user.
+- Added `handleSelfChangePassword`: self-service password change for non-admin
+  users; validates current password (Argon2id, lockout-checked), enforces
+  server-side confirmation equality check, hashes new password, revokes all
+  other sessions, audits as `{"via":"ui_self_service"}`.
+
+**internal/ui/ui.go**
+- Added `ProfileData` view model.
+- Registered `GET /profile` and `PUT /profile/password` routes (cookie auth +
+  CSRF; no admin role required).
+- Added `password_change_form.html` to shared template list; added `profile`
+  page template.
+- Nav bar actor-name span changed to a link pointing to `/profile`.
+
+**web/templates/fragments/password_change_form.html** (new)
+- HTMX form with `current_password`, `new_password`, `confirm_password` fields.
+- Client-side JS confirmation guard; server-side equality check in handler.
+
+**web/templates/profile.html** (new)
+- Profile page hosting the self-service password change form.
+
+**internal/db/migrate.go**
+- Compatibility shim now only calls `m.Force(legacyVersion)` when
+  `schema_migrations` is completely empty (`ErrNilVersion`); leaves existing
+  version entries (including dirty ones) alone to prevent re-running already-
+  attempted migrations.
+- Added duplicate-column-name recovery: when `m.Up()` fails with "duplicate
+  column name" and the dirty version equals `LatestSchemaVersion`, the migrator
+  is force-cleaned and returns nil (handles databases where columns were added
+  outside the runner before migration 006 existed).
+- Added `ForceSchemaVersion(database *DB, version int) error`: break-glass
+  exported function; forces golang-migrate version without running SQL.
+
+**cmd/mciasdb/schema.go**
+- Added `schema force --version N` subcommand backed by `db.ForceSchemaVersion`.
+
+**cmd/mciasdb/main.go**
+- `schema` commands now open the database via `openDBRaw` (no auto-migration)
+  so the tool stays usable when the database is in a dirty migration state.
+- `openDB` refactored to call `openDBRaw` then `db.Migrate`.
+- Updated usage text.
+
+All tests pass; `golangci-lint run ./...` clean.
+
 ### 2026-03-12 — Password change: self-service and admin reset
 
 Added the ability for users to change their own password and for admins to
@@ -394,9 +447,10 @@ All tests pass (`go test ./...`); `golangci-lint run ./...` reports 0 issues.
 - `engine.go` — `Evaluate(input, operatorRules) (Effect, *Rule)`: pure function;
   merges operator rules with default rules, sorts by priority, deny-wins,
   then first allow, then default-deny
-- `defaults.go` — 6 compiled-in rules (IDs -1 to -6, Priority 0): admin
-  wildcard, self-service logout/renew, self-service TOTP, system account own
-  pgcreds, system account own service token, public login/validate endpoints
+- `defaults.go` — 7 compiled-in rules (IDs -1 to -7, Priority 0): admin
+  wildcard, self-service logout/renew, self-service TOTP, self-service password
+  change (human only), system account own pgcreds, system account own service
+  token, public login/validate endpoints
 - `engine_wrapper.go` — `Engine` struct with `sync.RWMutex`; `SetRules()`
   decodes DB records; `PolicyRecord` type avoids import cycle
 - `engine_test.go` — 11 tests: DefaultDeny, AdminWildcard, SelfService*,