[Bug] Kernel bootstrap fails on native Windows — venv Python resolved as bin/python

[Laythros]

Affected area

Installation or updates

What happened?

On native Windows, every kernel bootstrap fails at the pip-install step with "Failed to set up the Python kernel runtime."
Cause: bootstrapVenv and ensureKernelPython build the venv interpreter path as /bin/python unconditionally, but uv creates Windows venvs with the Scripts\python.exe layout (packages/coding-agent/src/core/kernel/bootstrap.ts, two call sites).

Everything else on Windows already works; daemon on named pipes, Git Bash shell resolution, uv.exe handling, so this appears to be the last blocker to a working ipython kernel on native Windows.

I have a verified fix (small venvPythonPath() helper mirroring the existing uv.exe platform branch): tested on Windows 11 with a fresh install and no PRIME_AGENT_KERNEL_PYTHON override — auto-bootstrap builds the venv and an ipython tool call executes end-to-end against a local Ollama model. Branch: Laythros/prime-agent:fix/windows-kernel-venv-python, happy to open the PR.

Steps to reproduce

1. Windows 11 (native, not WSL), Git Bash installed, Node 24.x, uv 0.11.x on PATH.
2. Install prime-agent 0.7.2: npm install -g https://github.com/PrimeIntellect-ai/prime-agent/releases/download/v0.7.2/prime-agent-0.7.2.tgz
3. Run any prompt that uses the ipython tool, e.g.: prime-agent -p --provider ollama --model qwen3:8b "Use the ipython tool to compute 6*7"
4. First-time kernel bootstrap begins: uv venv succeeds, then the pip-install step fails.

Expected behavior

The kernel venv bootstraps and the ipython tool call executes.

Prime Agent version

0.7.2 — installed from the v0.7.2 GitHub release tarball via npm install -g (not the install.sh script, which is macOS/Linux-only)

Environment

Windows 11 Home (build 10.0.26200), native — not WSL. Node.js v24.12.0, npm 11.x global install. uv 0.11.1 (x86_64-pc-windows-msvc) on PATH. Git for Windows installed (Git Bash at the default path per docs/windows.md). Kernel Python: uv-managed 3.11. Shell: PowerShell / Windows Terminal. Model provider during repro: local Ollama (qwen3:8b) declared in ~/.prime/agent/models.json.

Additional context

No response