v0.7.1 — Brand Preview + Friction Fixes

Added

• Brand preview (brand_preview, M-15). Visual proof page from brand-runtime.json — color swatches, typography hierarchy, buttons, cards, WCAG contrast matrix. Screenshot-ready, shareable. Writes .brand/brand-preview.html.

Fixed

• Color role assignment. Uses selector context (header bg → primary, button → action, body → text) + CSS property heuristics. Reduces role: unknown from ~80% to ~20% on plain-CSS sites.
• Blank visual/voice fields. Interview tools reject all-empty answers instead of writing blank files.
• Feedback schema. Accepts type as alias for category.
• Diff engine key paths (M-17). Normalizes package structure across runtime locations.
• Recovery next_steps (M-18). Ranked by readiness impact, replaces linear session progression.
• Compile cache (M-19). Invalidates brand_check cache after compile.

39 tools. 4 prompts. 2 resources. 395 tests.