Enable internal analyst IDE flow

ID	M1-IDE-001
Status	cancelled
Priority	p1
Milestone	m1-ft-analytics-analyst-pilot
Owner	ui-design-frontend-dev

Cancelled — scope folded into task-m1-ide-extension-usability-hardening (M1-IDE-003). Pilot sign-off, runbook, and VS Code/Cursor smoke live there. Profiler work: M1-IDE-002. Column inspect dark-theme parity (templates + test_numeric_column_dark_theme_matches_model_page_background) landed while this task was still open; see git history.

Archived product notes (for M1-IDE-003 / M1-IDE-002)

M1 ships IDE + Suite; VS Code + Cursor = same extension.
Runbook promises open → edit → diagnostics → preview → save; git commit/push is normal editor tooling, not the extension.
Column drill theming should match model inspect page (addressed in core inspect templates).