v0.13.0 — local-default embedder + one-command setup

What's Changed

• fix(reach): add /savings aha bridge to dead-end answer page by @helios-code in #700
• fix(analytics): load Plausible on the 41 GEO/AEO pages shipping without it + coverage guard by @helios-code in #701
• ci(web): PII→OpenAI data-minimization guard (TSU-218) by @helios-code in #702
• fix(readme): swap hero banner to public-beta asset — kill private-beta leak (TSU-213/afcbf0bc) by @helios-code in #703
• fix(cli): trovex --version / -V (activation papercut, deae52e5) by @helios-code in #704
• feat(cli): trovex bench --retrieval — router quality over a labels file by @helios-code in #705

Full Changelog: v0.12.0...v0.13.0