fix: replace Python patch script with shell script in Dockerfile (#147)

* fix: replace Python patch script with shell script in Dockerfile

The base Docker image (dockurr/windows) doesn't have python3 installed.
PR #145 introduced a Python patch script that fails with "python3: not
found" during Docker build.

Fix: rewrite patch_setup_ps1.py as patch_setup_ps1.sh using awk/grep
(tools available in any minimal Linux). No dependencies required.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: Docker entry.sh path + shell patch script + Chrome experiment trace

Three fixes:
1. ./entry.sh → /run/entry.sh in docker run commands (relative path
   doesn't resolve in container, causing "No such file" on boot)
2. patch_setup_ps1.py → patch_setup_ps1.sh (base image has no python3)
3. Chrome task YAMLs dismiss sign-in dialog via --no-first-run flag

Includes successful Chrome experiment trace (score 1.0, 5/5 milestones,
8 steps): Claude planner + UI-Venus grounder completed "Set Chrome to
auto-delete on-device site data when closing" on WAA VM.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: abrichr