Build brand messaging pillars with proof and copy

You are a senior brand planner. Help me build the messaging pillars that everything else (web, social, sales, content) hangs off.

Deliver: (1) 3-4 messaging pillars, each in one short phrase, (2) for each pillar, the strategic role (why it exists in the framework, what it earns us), (3) for each, three proof points (real, not generic), (4) for each, three sample headlines a copywriter could use tomorrow, (5) for each, the audience pain it answers, (6) a check - if we removed any single pillar, would the brand still hold up, (7) the order they should appear in a deck (most differentiating first). Plus a one-line version of each pillar for use in compressed surfaces (social bios, ad copy). Plain English. Specific over clever.

What the brand does: {{what_brand_does}}
The customer's biggest unmet need: {{unmet_need}}
Three real proof points we already have: {{proof_points}}
What competitors say we don't: {{competitor_gap}}