MySQL backend + CDR + contacts email + matcher fix

- vm_store: MySQL (PyMySQL) default backend, SQLite fallback
- CDR: cdr_adaptive_odbc + res_odbc + MariaDB ODBC driver + Master.csv backfill
- contacts: full E.164 matching, WORK-email preference, junk-name guard
- backfill scripts: vm_migrate_sqlite_to_mysql.py, vm_backfill_contacts.py,
  vm_backfill_cdr.py
- live: 131 messages migrated, 7591 CDR rows backfilled

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## 1.1.0 — 2026-08-13
+
+- **Storage migrated to MySQL**: `vm_store` now defaults to MySQL (PyMySQL)
+  when `/opt/vm-transcribe/db_secret` is present, with a root-owned
+  least-priv `asterisk` user. SQLite remains as a fallback when
+  `VM_STORE=sqlite` is set or no secret file exists.
+- **Asterisk CDR → MySQL**: CDRs now write to MySQL via `cdr_adaptive_odbc`
+  + `res_odbc` + the MariaDB ODBC driver. Backfill script `vm_backfill_cdr.py`
+  imports `Master.csv` history into MySQL (7,591 rows).
+- **Contacts email support**: `vm_contacts` now returns `(name, email)`,
+  preferring `TYPE=WORK` addresses from vCard. `messages.contact_email` column
+  backfilled.
+- **Full E.164 matching**: contacts matcher uses the full digit string (up to
+  15 digits) instead of last-9; added a guard so emoji/placeholder contacts
+  cannot shadow real names.
+- **Migrations**: `vm_migrate_sqlite_to_mysql.py` and `vm_backfill_cdr.py`
+  added under `src/` for first-run and CDR backfill.
+
 ## 1.0.0 — 2026-08-13
 
 Initial build on mail.txt3.net (Debian 12, Asterisk 20, Apache 2.4, Postfix).