feat odbc: make driver production-ready

[V0S7ER]

Closes #218.

This is a follow-up to #1161 that completes the remaining ODBC production-readiness work and addresses the maintainer feedback from that review.

What changed

• Added secure parameterized query execution for Cluster and Transaction using ODBC ? placeholders, SQLPrepare, SQLNumParams, SQLBindParameter, and SQLExecute. The public API supports booleans, integer and floating-point types, strings, enums, optionals, and null values while keeping bound storage alive for the entire execution.
• Exposed CommandControl as public API, merged explicit/default/inherited deadlines, removed public engine::Deadline overloads, and made network deadlines cover connection acquisition, connect, begin, and blocking statement execution.
• Added post-call deadline checks so a driver call that completes after its deadline is reported as OperationInterrupted and accounted as a timeout.
• Added live secdist updates without replacing the public Cluster, with serialized topology replacement, unchanged-DSN suppression, safe pool/connection lifetime, and restoration of per-pool static settings when a dynamic override disappears.
• Added component and dynamic-config schema documentation, snippet-backed user documentation, configuration validation, an ODBC metrics smoke test, and a secdist reload functional test.
• Incorporated the smaller review fixes from feat odbc: improve driver #1161 (StrIcaseEqual, utils::text::ToUpper, designated initializers, and safe atomic ordering).

User impact

ODBC users can pass query parameters separately from SQL text instead of formatting them into a query, configure operation timeouts through the same command-control model as other userver database drivers, reload DSNs through secdist, and rely on documented schemas and metrics.

Validation

• ODBC PostgreSQL test suite: 69/69 passed
• ODBC basic-chaos functional suite: 15/15 passed
• ODBC secdist-update functional suite: 1/1 passed
• userver-odbc and both functional services built successfully
• component-schema and dynamic-config documentation generators passed
• project clang-format --dry-run --Werror, git diff --check, JSON validation, and Python syntax checks passed