feat(template_active_inference): harden canonical sheaf tracks

[docxology]

Summary

This replaces the previous dirty-history branch with a clean, single-commit PR from current origin/main focused on the public active-inference exemplar and its copied public deliverables.

• Hardens canonical sheaf tracks, validation-spine artifacts, claim-ledger bindings, method inventory, rendering reproducibility docs, replay/provenance artifacts, and appendix fragments for projects/templates/template_active_inference.
• Refreshes tracked copied outputs under output/templates/template_active_inference/**, including data, reports, figures, PDF, web, logs, and validation snapshots.
• Fixes the root transmission-bookend validator to locate basename-rendered combined PDFs for qualified public project slugs such as templates/template_active_inference; this is required for the root core pipeline to validate public template exemplars.
• Leaves project-local projects/templates/template_active_inference/output/** ignored and excludes generated coverage_project.json from the commit.

Verification

• uv run pytest tests/infra_tests/validation/test_validation_output_pipeline.py -q --tb=short -> 35 passed
• uv run pytest projects/templates/template_active_inference/tests/test_method_inventory.py projects/templates/template_active_inference/tests/test_documentation_contracts.py -q -> 4 passed
• uv run python scripts/generate_method_inventory.py --check -> passed
• uv run python scripts/check_template_drift.py --project templates/template_active_inference --strict -> no drift detected
• uv run python scripts/validate_outputs.py from projects/templates/template_active_inference -> all output and manuscript checks true
• ./run.sh --project templates/template_active_inference --pipeline --core-only -> complete; infrastructure smoke 112 passed; project suite 263 passed, 1 skipped, 10 warnings; project coverage 91.98% / reported 92.0%; analysis 13/13 scripts; PDF and HTML rendered; output validation passed with 1 non-critical artifact-manifest warning; copied outputs validated, 126 files / 6.17 MB
• Pre-commit during amend -> ruff and mypy passed
• Pre-push -> generated-artifact guard, no-mocks, hook smoke pytest, docs-contract guard, template drift, Bandit, skills check, and __all__ export audit all passed

Notes

Current main resolves this public exemplar in the root pipeline with the qualified slug templates/template_active_inference. The unqualified slug path failed before stages on this base, so the authoritative root pipeline evidence above uses the qualified public project name.