S378 adds a series-map button that fetches all 29 articles client-side, extracts content, and opens a single-page compilation in a new window for reading or print-to-PDF. No telemetry.
Commit 29db8a6 on glm-5.2-site. LIVE control surface: series-map.html (HTTP 200; compilation download markers present). Client-side fetch + DOMParser extraction — pure browser, no server compile step.
Cold-reader value: the dependency-graph map (S374) now has an exit ramp into a printable full-series reading surface. Fits the cascade’s “power tools without accounts” pattern.
Cascade: S372–S377 desked → S378 Series Compilation. Distinctive beyond S377; Non-WOW; no standing/echoes bump.