Add dedicated IEC 61850 product SEO pages

[masarray]

What changed

• add dedicated product pages for IEC 61850 MMS Client, GOOSE Analyzer, File Transfer and COMTRADE Retrieval, SCL Workspace and selected-RCB export, and Multi-IED Monitoring
• give every page unique search-intent metadata, canonical URL, Open Graph data, breadcrumb schema and Ari Sulistiono author attribution
• use real ARSAS screenshots as feature evidence on the relevant product pages
• turn Capabilities into a product-page hub with direct routes to MMS, reporting, GOOSE, files, SCL, control and multi-IED workflows
• register all new pages in the single page registry so sitemap and build information are generated automatically
• expand the shared footer with compact product-workflow links and responsive four-column desktop layout
• preserve explicit engineering limitations and safety boundaries on every page

User impact

Engineers searching for an IEC 61850 MMS client, GOOSE analyzer, COMTRADE file transfer, SCL viewer/export workflow or multi-IED monitoring can now land on a focused ARSAS page, understand the workflow, see real application evidence and download the software without navigating source code.

Validation

• product-source templates, partials and 14-page registry: passed
• deterministic website rendering and generated sitemap: passed
• unique metadata, local assets, shared navigation and product download routes: passed
• public website boundary checks: passed
• ARSAS source, UX, GOOSE and SAS invariant checks: passed
• ARIEC61850 API compatibility checks: passed
• .NET restore and Windows application compile: passed
• portable x64 publish and artifact upload: passed

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