[codex] Add capability map to gen-plan

[zevorn]

Background

This change is inspired by the paper EvoDev: An Iterative Feature-Driven Framework for End-to-End Software Development with LLM-based Agents. EvoDev uses a Feature Map to model feature dependencies and propagate business, design, and implementation context across iterations.

This PR does not adopt EvoDev wholesale. It applies the same planning insight to Humanize's gen-plan: every implementation task should know where it sits in the global capability/feature structure. The new map gives tasks a shared frame of reference before they are broken down into executable coding / analyze items.

After adding the map to plan generation, this also wires that context into RLCR execution so Claude coding prompts, Codex reviews, round contracts, and the Goal Tracker can keep work anchored to the relevant capability node instead of losing the global position during later rounds.

Summary

• add a Feature Map / Capability Map section to the gen-plan output template
• require gen-plan to preserve capability-level business/design/implementation context before Task Breakdown
• document refine-plan preservation behavior for the optional capability map section
• add RLCR Capability Anchor guidance to round-0 setup, follow-up prompts, drift recovery, and review phase prompts
• add a Capability column to Goal Tracker Active Tasks generated by RLCR setup
• add Codex Capability Map Alignment Check sections to regular and full alignment review templates
• update the Claude-facing Humanize command/skill docs so the plugin exposes the new capability-anchor behavior
• document capability maps and RLCR capability anchors in README and the Claude usage guide
• keep Claude plugin metadata and version unchanged at 1.17.0
• add structure tests for the new planning and RLCR execution contracts

Validation

• jq empty .claude-plugin/plugin.json .claude-plugin/marketplace.json
• bash tests/test-task-tag-routing.sh
• bash tests/test-template-references.sh
• bash tests/test-templates-comprehensive.sh
• bash tests/robustness/test-setup-scripts-robustness.sh
• bash tests/test-plan-file-hooks.sh
• bash tests/test-gen-plan.sh
• bash tests/test-refine-plan.sh
• git diff --check