chore(migrate): rename go module path to allthebacteria/atb-cli

[thanhleviet]

Summary

First code commit on the new repo after the mirror push. Renames the Go module path and all imports, updates documentation URLs, and adds a v0.13.0 CHANGELOG entry.

Details

• Module path: github.com/AMR-genomics-hackathon-2026/atb-cli-claude → github.com/allthebacteria/atb-cli
• Imports in 38 .go files updated via mechanical find/replace.
• README.md and docs/deployment.md URLs updated.
• Container image path updated to ghcr.io/allthebacteria/atb-cli.
• CHANGELOG.md gets a new v0.13.0 entry at the top; existing entries' links are preserved (they correctly point at release assets on the archived old repo).
• go mod tidy was run; go.sum picked up missing h1: hashes for test-only dependencies (a pre-existing gap unrelated to the rename).

Test plan

• go build ./...
• go test -race -count=1 ./...
• go vet ./...
• go mod tidy runs cleanly
• CI passes on this PR
• End-to-end install verification after v0.13.0 ships (Gate E in the migration spec)