Fix COT (Cotswold) scraper

[symroe]

What broke

The Cotswold ModGov endpoint (meetings.cotswold.gov.uk) times out after 30 seconds when accessed from Lambda's IP range. The endpoint responds correctly (HTTP 200, valid XML) from other IPs, indicating an application-layer block (WAF or CDN) that targets Lambda's egress IP range. Without a real browser fingerprint, Lambda's wreq client appears to receive a response that is either a JS challenge or a slow-drain from the WAF, causing a 30-second timeout.

What was fixed

• Added http_lib = "playwright" to the Scraper class — headless Chromium bypasses application-layer blocks by presenting a genuine browser TLS fingerprint and executing any JS challenges natively

Scrape results

Metric	Count
Councillors found	33
With email address	33
With photo	33

Note: Local testing with playwright install chromium uses a chromium-headless-shell binary with a restricted CA bundle that does not trust meetings.cotswold.gov.uk's certificate. The same cert is fully valid per the system CA store (curl and Python ssl both confirm). The Lambda container image ships with a system-linked Chromium where this cert is trusted, so the fix should work correctly in production. Verified by running playwright directly with ignore_https_errors=True which returned correct XML (33 councillors, 33 emails, 33 photos).

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Generated by Claude Code

[symroe]

Re-scrape after 82353ae

Added http_lib = "playwright" to use headless Chromium and bypass the Lambda WAF/IP block on meetings.cotswold.gov.uk.

Metric	Count
Councillors found	33
With email address	33
With photo	33

Verified by running playwright directly with ignore_https_errors=True (needed only in this test container due to chromium-headless-shell CA bundle — Lambda's deployed chromium trusts the cert natively). Full councillor set retrieved with complete email and photo coverage.

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Generated by Claude Code