* docs: add JetBrains Junie support (native AGENTS.md reader)
Junie reads AGENTS.md from the project root natively (per JetBrains' official docs), so ponytail works zero-config in any JetBrains IDE — like CodeWhale (#124). Adds a README note + agent-portability row, and bumps the agent badge 16 -> 17. Docs-only.
* docs: also add Amp and Jules support (native AGENTS.md readers)
Amp (Sourcegraph) reads AGENTS.md as its primary guidance file (cwd + parents up to $HOME + global config; per ampcode.com/manual). Jules (Google) auto-reads AGENTS.md from the repo root (per jules.google/docs). Both work zero-config via the AGENTS.md this repo ships. Badge 17->19. Roo Code evaluated and excluded (archived 2026-05-15).
* Merge main; correct Junie AGENTS.md note (Guidelines Path, not automatic)
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Co-authored-by: Emeriko <dietrich.gebert@gmail.com>
Hamza Ali Shahjahan
8f32ae0f6e