v0.9.0

Fixed

• Release unused closed or discarded connection wrappers without waiting for
  cyclic garbage collection; retained queries and cursors still keep their owner.
• Validate complete SQL and ordered typed bindings in compiler benchmark digests,
  and measure associative key allocation on every simulated row.
• Reject aliased and wildcard identifier objects in column clauses before
  producing invalid SQL, matching structured string validation.
• Preserve successful generated-ID inserts when optional affected-row metadata
  cannot be collected for observation.
• Preserve finite float binding values independently of PHP's precision settings
  using locale-independent, round-trippable decimal strings.
• Prevent cloning connections and cursors from duplicating ownership of PDO,
  transaction state, and active statements.
• Avoid PHP 8.5 deprecation warnings from MySQL-specific PDO constants during
  MariaDB/MySQL connection setup and validation, retaining PHP 8.2 compatibility.
• Measure soak retained growth from PHP used memory instead of reserved
  arena chunks, so a normal 2 MiB arena increment no longer fails the soak
  memory gate as apparent retained growth.