v0.11.0

Release 0.11.0

Minor bump (breaking, per 0.x semver): removes the sem verify command and
the sem_core::parser::verify module, which cargo-semver-checks flags as a
breaking API change. Also ships SQL support, the official Perl grammar,
sparse-checkout support, no-change diff counting in stats, the MCP setup
docs, dev-build telemetry exclusion, and the uv-style graph spinner.

cargo semver-checks -p sem-core --baseline-rev v0.10.1: passes (major
change, version adequate).