feat(cli): show repo allocation in miner score

[bittoby]

Summary

Add a per-repository emission allocation breakdown to gitt miner score.

The JSON output now includes an allocation_breakdown array showing each relevant repository’s emission slice, PR/issue split, miner scores, and allocated rewards. The normal table output also includes a compact repo allocation table.

This makes the final blended reward easier to understand after repo-bounded emission allocation.

Related Issues

Closes #1283

Type of Change

• Bug fix
• New feature
• Refactor
• Documentation
• Other (describe below)

Testing

• Tests added/updated
• Manually tested

.venv/bin/python -m pytest tests/validator/test_blend_emission_pools.py tests/cli/test_miner_score.py
.venv/bin/python -m ruff check gittensor/validator/emission_allocation.py gittensor/cli/miner_commands/score.py tests/validator/test_blend_emission_pools.py tests/cli/test_miner_score.py
.venv/bin/python -m ruff format --check gittensor/validator/emission_allocation.py gittensor/cli/miner_commands/score.py tests/validator/test_blend_emission_pools.py tests/cli/test_miner_score.py
git diff --check

Results:

• 34 passed
• Ruff check passed
• Ruff format check passed
• Diff whitespace check passed

Checklist

• Code follows project style guidelines
• Self-review completed
• Changes are documented (if applicable)

[bittoby]

Result simulation

Setup: dev miner (UID 1), eligible. Repos: octo/repo (emission_share=0.3), octo/lib (emission_share=0.4, issue_discovery_share=0.2). OSS_EMISSION_SHARE=0.9. Miner scores: octo/repo 30 PR (peer 10), octo/lib 20 PR + 4 issue (peer 12 issue).

Non-maintainer miner

Repo	Slice	PR score	Issue score	PR reward	Issue reward	Recycled
octo/repo	0.270000	30.00	0.00	0.202500	0.000000	-
octo/lib	0.360000	20.00	4.00	0.288000	0.018000	-

Reconcile: 0.2025 + 0.288 + 0.018 = 0.5085 = blended_final ✅

Maintainer miner (octo/repo has maintainer_cut=0.5, dev is the registered maintainer — exercises the #1292 carve-out path)

Repo	Slice	PR score	Issue score	PR reward	Issue reward	Maintainer reward	Recycled
octo/repo	0.270000	30.00	0.00	0.101250	0.000000	0.135000	-
octo/lib	0.360000	20.00	4.00	0.288000	0.018000	0.000000	-

Reconcile: (0.10125 + 0 + 0.135) + (0.288 + 0.018) = 0.54225 = blended_final ✅

The "Maintainer reward" column auto-appears only when at least one row has a positive maintainer reward; non-maintainer miners see the cleaner 7-column layout.