Docs: Contributing now enforces 97% coverage

CONTRIBUTING.md

@@ -317,7 +317,7 @@ All CI pipeline checks must pass. This includes, but is not limited to:
 - Static type checking.
 - Security scanning.
 - Test coverage must remain at or above the project-defined minimum threshold. The general
-  minimum is **85%**. Individual projects may enforce a higher threshold — see the
+  minimum is **97%**. Individual projects may enforce a higher threshold — see the
   [Project-Specific Guidelines](#project-specific-guidelines) section for this project's exact
   requirement.
 
@@ -1235,7 +1235,7 @@ session is missing required tooling, add the dependency to the session before re
 
 **Coverage threshold:** Unit test coverage must remain above **97%** at all times. Coverage is
 measured with `nox -s coverage_report` and is enforced in CI. This threshold is stricter than
-the general minimum of 85% described in
+the general minimum of 97% described in
 [Review and Merge Requirements](#review-and-merge-requirements) — for this project, **97% is
 the enforced merge gate**. Pull Requests that cause coverage to drop below 97% will not be
 merged.
@@ -1251,7 +1251,7 @@ project with the following project-specific details:
 - **Automated checks** are run via `nox`. The full suite (`nox` with no arguments) must pass,
   which includes unit tests, integration tests, type checking (Pyright), linting, formatting,
   and security scanning.
-- **Coverage gate:** 97% (not the general 85% minimum). Measured by `nox -s coverage_report`.
+- **Coverage gate:** 97% (not the general 97% minimum). Measured by `nox -s coverage_report`.
 - **Pre-commit hooks** (configured in `.pre-commit-config.yaml`) enforce commit quality
   locally. All hooks must pass before a commit is accepted. See
   [Commit Quality Enforcement](#commit-quality-enforcement) for setup instructions.