docs: align all documentation with the new repo structure

Update agent protocols (.claude/agents, .github/agents), guides, runbooks and READMEs
to the post-restructure layout: .specify/{scripts,tests,security,config,templates,
governance,memory,level5-config} -> packages/casan-harness/...; docs/input +
golden-runs + traceability-map -> apps/okr/domain/...; drop AINative_OKR_CASAN5/ prefix.
Runtime-state paths (.specify/logs, .specify/agentops, .specify/level5/central-governance)
kept as-is. Historical evidence under docs/output/ left untouched (immutable run records).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/casan-harness/memory/constitution.md

@@ -5,10 +5,10 @@ Modified principles: placeholder principle 1 -> I. Requirement-First Definition;
 Added sections: Product Scope Constraints; Delivery Workflow and Quality Gates
 Removed sections: none
 Templates requiring updates:
-- ✅ .specify/templates/spec-template.md
-- ✅ .specify/templates/plan-template.md
-- ✅ .specify/templates/tasks-template.md
-- ⚠ pending none in .specify/templates/commands because that directory does not exist in this repository
+- ✅ packages/casan-harness/templates/spec-template.md
+- ✅ packages/casan-harness/templates/plan-template.md
+- ✅ packages/casan-harness/templates/tasks-template.md
+- ⚠ pending none in packages/casan-harness/templates/commands because that directory does not exist in this repository
 - ✅ README.md
 Follow-up TODOs: none
 -->