feat: enforce worker cost budgets

[fazpu]

Summary

• add typed per-route cost budgets with aligned Postgres-window preflight and durable park/resume semantics
• carry required provider usage through worker model and embedding calls into cost_ledger
• add budget inspection CLI and focused acceptance coverage

Scope

OSS mechanism only: no hosted billing policy, dashboard, HA topology, or control plane.

Validation

• Grok final review: PASS, merge-ready
• eval-banana ops_metering_budgets_enforced: 1/1
• ruff check/format: pass
• targeted pyright: 0 errors
• provider boundary tests: 16 passed
• E2 worker metering database proof: 1 passed
• WP7.3 ledger module before provider instrumentation: 11 passed
• compatibility slice: 18 passed
• docs typecheck/build: pass
• prior frozen full-suite baseline: 746 passed in 2h19m

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
src/ultimate_memory/adapters
openrouter.py					56-57, 72-84, 88-104, 114
src/ultimate_memory/adapters/testing
__init__.py
cost_meter.py
model_provider.py					48
src/ultimate_memory/eval
consumption.py
src/ultimate_memory/model
__init__.py
model_provider.py
processing.py
src/ultimate_memory/ports
cost_meter.py
model_provider.py
src/ultimate_memory/spine
entity_registry.py
lifecycle.py
observation_adjudication.py					248, 256, 493, 510, 518-528, 545
resolver.py					232-236, 310, 391, 403
supersession.py					219, 235
work_ledger.py					63, 161
src/ultimate_memory/surfaces
cli.py					99-104
src/ultimate_memory/workers
base.py
e0.py					480
e1.py
e2.py
e3.py
knowledge_authored.py
p1.py
reconcile.py
Project Total

The report is truncated to 25 files out of 29. To see the full report, please visit the workflow summary page.

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