Default to native execution and report independently accepted work

[boshu2]

Change

Make native coding-agent execution the default AgentOps entry path with zero mandatory skills. Preserve full bundles and add repeatable ao skills link --skill NAME selection, validating the entire selection before writes. Align product, installation, architecture and generated command documentation.

Extend the existing trial readout to separate endpoint test results, execution state and independently accepted work. Bind supplied judgments to exact content, acceptance and native evidence. Reject empty implementation subjects and require the caller's complete criterion ID set before reporting acceptance. Preserve genuine nonempty and deletion-only subjects, valid failures and missing-proof outcomes.

Validation

• Native onboarding from empty home/consumer directories produces no setup files; selective/full linking and failure boundaries are covered.
• Actual RED/GREEN regressions cover empty subjects and the partial-criterion omission found by independent review.
• Full Go build, vet and race/shuffle tests; affected Go lint; 88 Python readout/statistics tests passed.
• All 73 gates, generated projections, strict documentation build and local aggregate passed (10 passed; one documented optional absence).
• All nine PR checks succeeded at 7df0d42b12f35ffc22008cc10a40339afcfbb6a0.
• Fresh author-distinct review passed all six acceptance criteria over all 59 changed paths, with no findings or unchecked scope, after repairing the criterion-coverage finding.

Evidence limits

The real native coding repair demonstrates usability, not comparative skill uplift. The strict live-session machine replay remains NOT_PROVEN where execution/identity observations are unavailable; the source review PASS is retained separately. Existing cohort limits and the historical aggregate-enforcement gap remain unwaived. No new comparative cohort, scheduler, skill-corpus deletion, memory migration or global installation is included.