chore(main): release 0.18.0

[glean-cli-release]

🤖 I have created a release beep boop

0.18.0 (2026-07-27)

Features

• agents: serve agents commands from the platform API by default (#136) (21737e2)
• api: route /api/* platform paths and send experimental header (#140) (b8a88cc)
• cmdutil: teach Build the platform-first fallback protocol (#135) (0b8da87)
• platform: platform-first routing with legacy fallback (#132) (4b9131a)
• search: platform search request builder and runner (#133) (046a998)
• search: serve glean search from the platform API by default (#134) (bf4c747)

Dependencies

• bump github.com/gleanwork/api-client-go to v0.13.3 (#131) (aefae40)
• deps: bump github.com/coreos/go-oidc/v3 from 3.19.0 to 3.20.0 (#130) (0951fdd)
• deps: bump github.com/gkampitakis/go-snaps from 0.5.22 to 0.5.23 (#129) (ab4b9eb)
• deps: bump github.com/gleanwork/api-client-go (#142) (76feda1)
• deps: bump golang.org/x/mod from 0.37.0 to 0.38.0 (#128) (c3bb409)
• deps: bump golang.org/x/net (#124) (562f078)
• deps: bump golang.org/x/term from 0.44.0 to 0.45.0 (#126) (a85d09a)

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