feat(sqlite)!: promote to v1.0.0 — validate write-mutex approach, bump all deps to v1.0.0

All v0.9.0 roadmap items evaluated in production. WAL + write-mutex serialisation validated
under real workloads; no API changes needed. Read/write pool separation and Pragmas structured
type deferred as out-of-scope for this use case tier. Bump all micro-lib dependencies (logz,
health, launcher, xerrors) from v0.9.0 to v1.0.0. API committed as stable.

CHANGELOG.md

@@ -5,6 +5,19 @@ All notable changes to this module will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this module adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.0] — 2026-05-12
+
+### Changed
+
+- All micro-lib dependencies bumped from v0.9.0 to v1.0.0: `logz`, `health`, `launcher`, `xerrors`.
+
+### Unchanged
+
+All existing API (`Executor`, `Tx`, `Client`, `Component`, `UnitOfWork`, `Config`, `New`,
+`NewUnitOfWork`, `HandleError`) is API-compatible with v0.9.0.
+
+[1.0.0]: https://code.nochebuena.dev/go/sqlite/releases/tag/v1.0.0
+
 ## [0.9.0] - 2026-03-18
 
 ### Added