fix(ai): compact wide selection schemas

[first-assist]

Outcome

Encode automatic capability scalar-selection paths as one closed string enum instead of repeating a described const schema for every reachable path. This keeps wide, deep relationship graphs inside the fixed provider-schema byte contract without omitting paths or changing the compact plan JSON shape.

Release versions are graphql-orm-ai-tool-profiles 0.10.1 and graphql-orm-ai 0.95.2 at one full reviewed revision.

Safety

• Exact public paths remain compiler-owned and allow-listed.
• Unknown, hidden, secret, non-exportable, cyclic, over-depth, over-cardinality, stale, and over-budget plans remain rejected.
• Typed relationship arguments and their adjacent descriptions are unchanged.
• Canonical discovery retains public field and relationship descriptions.
• Capability fingerprints change deterministically with the schema representation.

Documentation impact

• Documentation updated
• No documentation impact

Verification

• cargo test --locked -p graphql-orm-ai-tool-profiles --all-targets
• cargo test --locked -p graphql-orm-ai --lib --no-default-features --features sqlite,provider-codex-app-server (326 passed; 2 reviewed binary-dependent ignores)
• cargo clippy --locked -p graphql-orm-ai --all-targets --no-default-features --features sqlite,provider-codex-app-server -- -D warnings
• cargo clippy --locked -p graphql-orm-ai-tool-profiles --all-targets -- -D warnings
• RUSTDOCFLAGS='-D warnings -D missing_docs' cargo doc --locked -p graphql-orm-ai -p graphql-orm-ai-tool-profiles --no-deps
• Complete default/SQLite reverse suite: 251 unit tests plus all integration suites; generated ORM doctests intentionally ignored
• python3 scripts/check-documentation.py
• python3 scripts/generate-workspace-inventory.py --check
• scripts/check-workspace-dependencies.sh
• scripts/check-package-release-policy.sh origin/main
• scripts/check-semver.sh origin/main
• cargo fmt --all -- --check
• git diff --check