UX: add subtle suggestions for paid subagents (preflight + approach)

[danmaps]

Goal

Add subtle but clear UX cues in arcgispro-cli output that point users toward the paid/proprietary analysis agents (without being spammy).

Why

• Open core builds trust and adoption.
• Users often don’t know what to do next after a snapshot/dump.
• A small hint at the right moment improves conversion without degrading UX.

Proposal

• In arcgispro inspect output (and/or after snapshot/dump completes), print a short “Next steps” block when certain signals are present.
• Keep it subtle and conditional, e.g. only show when:
  • broken data sources are detected
  • mixed spatial references are detected
  • service layers detected
  • many joins/relates

Example copy (draft):

• "Tip: run an automation preflight (‘workflow smells’) on this snapshot to catch brittle patterns before scripting."
• "Tip: if you’re deciding between ArcPy vs GP tools, run the ‘approach’ advisor on this snapshot."

Acceptance Criteria

• Messages are:
  • short (1–2 lines)
  • non-blocking
  • not shown on every run (guarded by heuristics)
  • easy to disable (flag or env var, e.g. --no-suggestions)
• No external links required, but can optionally show a single canonical URL.

Notes

• Don’t make the open CLI feel like an ad.
• Prefer an opt-out flag.