Webhook-to-SSE gateway with hierarchical topic routing and signature verification

Return version banner on root URL, embed version at build time master

The root path was returning 404 which made it impossible to use with site-pinger for uptime monitoring. Now returns "wicket <version>" as text/plain. Version is set via ldflags in ko and defaults to "dev" locally. Also removes the unused Dockerfile since we build with ko. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>


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5 changed files