v5.2.1 — OpenCode-parity CLI subcommands + thinking dedup + llama.cpp E2E

v5.2.1 (PATCH) — OpenCode-parity CLI + llama.cpp E2E

What changed

• openforge CLI gained OpenCode-style subcommands: openforge tools, openforge models,
  openforge session new|list, openforge run "msg" [--model M] [--print-logs] [--log-level X].
  Help table updated accordingly.
• Chat CLI shows the thinking/status line once per turn (no repeated "Forge is thinking..." spam).
• File tools now accept allow_absolute=True for opt-in out-of-workspace I/O (still gated: explicit user approval).

Verification performed

• Full suite: 1132 passed / 0 failed on this env.
• openforge tools|session new|session list|run smoke-verified.
• llama.cpp E2E: created mendung_api/hello.py and ran it successfully against the configured local provider.

Upgrade

git pull && pip install -e . — then openforge --version, openforge doctor.