openplanr 1.7.1

Patch Changes

• Align generated rule templates and the spec-schema reference to Opus 4.8 (was Opus 4.7). The cursor (planr-pipeline.mdc.hbs, agents/specification-agent.md) and codex (_pipeline-section.md.hbs) rule-generator templates, plus docs/reference/spec-schema.md, now render the current DEV-tier codegen model — matching the planr-pipeline plugin v0.10.0 bump to claude-opus-4-8[1m].