feat: preserve approval_ids in final edge output

[SkyeAv]

Allows DAKP’s FDA application-number annotations to survive in Tablassert’s final KGX output as structured edge fields.

Final edge output

• Allow-list wiring: Adds approval_ids to TABLASERT_EDGE_EXTRAS, preventing folding into supporting_text.
• DAKP-compatible scalar: Preserves pipe-joined values such as 011111|022222 verbatim as scalar strings.

Validation and docs

• Pending handling: Updates class pruning, KGX pending validation, and agent scoring guidance.
• Documentation: Updates docs/configuration/table.md, docs/agent.md, docs/cli.md, and CHANGELOG.md.

Testing

• uv run pytest ... -k 'approval or fold_unknown or prune_to_class or allowed_edge_fields or pending or annotation_warns' -q → 24 passed
• uv run pytest tests/test_docs_cli_coverage.py tests/test_agent_docs.py -q → 11 passed
• uv run ruff check src tests → passed
• uv run ruff format --check src tests → passed
• uv run pyright ... → 0 errors
• Full suite → 890 passed, 35 skipped, 1 failed, 1 error; remaining failures require missing optional [qc] dependencies.

[coderabbitai]

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⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 4d61583e-e20e-43d7-99a1-07f3f6bb1bc1

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