Higher-Ed Dial Queue Builder (SDR Pod Lead Engine v1)

<quick_start> Trigger: M-F 6:45 AM ET (before morning-brief 7:30, before pod dials). Manual: "Build HE dial queue" / "Refresh pod dial list". Config: reference/verticals/higher_ed.md — lifecycle values, DIALABLE set, suppression (AE IDs, deal rules), tiering, floors, ATL/BTL, CMS signals. All knobs live there. Dependencies: HubSpot (portal 21530819) read; Google Drive (Sheet); Slack (alert). Apollo only on top-up. Output: Google Sheet HE Dial Queue — <YYYY-MM-DD> (Tier 1→2→3) + inventory status + sidecar JSON. Dialer: Nooks (imports the Sheet / HubSpot natively). NOT Salesfinity. </quick_start>