Add OpenAPI wiki pages (spec usage + how it's kept correct) + sidebar/links
Add REST-API-Documentation-Page: how to use the interactive API docs (#706) + links
REST API: Network Mapper module usage guide (#704) + sidebar/index links
REST API: Workflow module usage guide (#702) + sidebar/index links
REST API: Forms module guide + links
REST API: Morning Checks module guide + links
REST API: Service Status module guide (derived health board, monitoring round-trip) + how-it-works updates
REST API: Software module guide (computed compliance, renewal filters) + how-it-works updates
REST API: Calendar module guide (naive-local datetimes, generated-event protection) + how-it-works updates
REST API: Contracts module guide (renewal radar, suppliers, terms) + how-it-works updates
REST API: CMDB module guide (schema-driven writes, impact, scoped ticket links) + how-it-works updates
REST API: Tasks module guide (board moves, parity notes) + how-it-works updates
REST API: Knowledge module guide + how-it-works updates
REST API: Changes module guide incl. CAB workflow + how-it-works updates
REST API: Problems module guide (company-scoped) + how-it-works updates
REST API: Assets module guide + how-it-works updates (assets shipped, scope note)
REST API v1: how-it-works deep dive + Tickets endpoint guide (per-module pattern); link from Home/sidebar/API-Reference