feat(commands): /update-skills syncs forks with upstream via 3-way merge

Upstream releases fixes worth pulling into the forks (arch-decide, playwright-js, playwright-py) without losing our local modifications. Each fork now has a manifest at upstreams/<name>/ plus a committed baseline snapshot that is the 3-way merge base. scripts/update-skills.py classifies each file's drift and merges to stdout. The command owns per-file confirmation, per-hunk conflict prompts, and every target write.

I centralized manifests under upstreams/ instead of per-skill dotfile dirs because arch-decide is now two flat files in commands/ and can't carry one. A "files" map in its manifest handles the upstream rename of SKILL.md to arch-decide.md.

I seeded baselines from today's upstream HEADs, so pre-existing local modifications classify as local-only from here on. git merge-file signals hard errors as exit 255, which subprocess reports as positive. The guard treats anything 128 and up as an error so a binary-file failure isn't misread as a conflict.

1 files changed, 35 insertions, 0 deletions

diff --git a/upstreams/playwright-py/baseline/examples/console_logging.py b/upstreams/playwright-py/baseline/examples/console_logging.py
new file mode 100644
index 0000000..9329b5e
--- /dev/null
+++ b/upstreams/playwright-py/baseline/examples/console_logging.py
@@ -0,0 +1,35 @@
+from playwright.sync_api import sync_playwright
+
+# Example: Capturing console logs during browser automation
+
+url = 'http://localhost:5173'  # Replace with your URL
+
+console_logs = []
+
+with sync_playwright() as p:
+    browser = p.chromium.launch(headless=True)
+    page = browser.new_page(viewport={'width': 1920, 'height': 1080})
+
+    # Set up console log capture
+    def handle_console_message(msg):
+        console_logs.append(f"[{msg.type}] {msg.text}")
+        print(f"Console: [{msg.type}] {msg.text}")
+
+    page.on("console", handle_console_message)
+
+    # Navigate to page
+    page.goto(url)
+    page.wait_for_load_state('networkidle')
+
+    # Interact with the page (triggers console logs)
+    page.click('text=Dashboard')
+    page.wait_for_timeout(1000)
+
+    browser.close()
+
+# Save console logs to file
+with open('/mnt/user-data/outputs/console.log', 'w') as f:
+    f.write('\n'.join(console_logs))
+
+print(f"\nCaptured {len(console_logs)} console messages")
+print(f"Logs saved to: /mnt/user-data/outputs/console.log")
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