Repair ORM release fixture locks and execute PostgreSQL count authorization

[Dastari]

#103 advances ORM/macros to 0.35.2 but leaves the standalone fixture lockfiles at 0.35.1; their required --locked builds fail before compilation. Regenerate those five lockfiles without dependency upgrades (also reconcile the already-merged AI package version in the coexistence fixture).

Execute the existing eight repository count/exists authorization regressions on individually owned disposable PostgreSQL as well as memory SQLite. Cleanup checks the exact container identity; an unavailable database fails rather than silently skipping. Include that execution in the release workflow's PostgreSQL lane. No runtime source, public API, SDL, package version or database schema behavior changes; these are release validation repairs for the unpublished 0.35.2 set.

Validation:

• cargo test --locked -p graphql-orm --no-default-features --features sqlite --test repository_counts: 8 passed, none ignored.
• Same command with --features postgres -- --test-threads=1: 8 passed on disposable PostgreSQL, none ignored.
• External cross-crate fixture cargo test --locked ... --features sqlite: six executed tests passed; two generated illustrative doctests ignored.
• Warnings-denied SQLite and PostgreSQL count-test Clippy passed.
• Combined SQLite library/group/projection/count run: 53 passed. Owned PostgreSQL: four projection tests and six cross-crate relationship tests passed in addition to the eight count regressions.
• Explicit package SemVer check against 0.35.1: 223 checks passed, 30 intentionally skipped; no patch compatibility violation. Warnings-denied Rustdoc passed for SQLite, PostgreSQL and MSSQL.
• Formatting, documentation (191 governed files), inventory, release-state, dependency-boundary and package-release checks passed; manifest unit tests 6 passed and notice tests 13 passed.
• External policy_projections and complete_events examples execute successfully (225 event groups); warnings-denied PostgreSQL core/macros Rustdoc and MSSQL library Clippy pass. MSSQL live execution is not claimed.

Release coordination: .2 remains immutable. The old .3 run at 73ef09d failed the current-main guard after #103 merged and published nothing. A new .3 run will use the exact reviewed main commit after this follow-up, retaining GitHub's human protected-environment gate. A (#97) and B–D remain outside this release; remaining GEMA queries/views stay open in #91.

Documentation impact

• Documentation updated
• No documentation impact

Explanation: changelog and runnable SQLite/PostgreSQL count validation commands.