Fix environment configuration parsing and documentation issues

[Copilot]

Addresses 11 issues from PR #254 review: broken dotenv parsing in GitHub Actions, quote handling in .envrc, version mismatches, and misleading documentation.

Dotenv Parsing

GitHub Actions - Replaced grep with proper parser that strips quotes and handles edge cases:

# Before: quotes preserved literally, comments break GITHUB_ENV
grep -v '^#' .env >> $GITHUB_ENV

# After: proper parsing with quote stripping
while IFS= read -r line; do
  [[ "$line" =~ ^[A-Za-z_][A-Za-z0-9_]*= ]] || continue
  key="${line%%=*}"
  value="${line#*=}"
  # Strip surrounding quotes
  [[ "$value" =~ ^[\"'](.*)[\"']$ ]] && value="${BASH_REMATCH[1]}"
  echo "$key=$value" >> $GITHUB_ENV
done < .env

.envrc - Use direnv's built-in loader instead of custom function:

# Before: custom function with quote issues
load_env_file() { while IFS='=' read -r key value; do export "$key"="$value"; done < "$1"; }

# After: use direnv's proper implementation
dotenv_if_exists ".env"
dotenv_if_exists ".env.$ENV"

Configuration Fixes

• COMPILER_VERSION: 0.8.3 → 0.11.4 (sync with deno.json)
• DENO_DIR: Removed from base .env (/app/.deno breaks GitHub Actions)
• Turnstile keys: Empty values in .env.production (prevent accidental verification)
• wrangler.toml: Fixed localConnectionString to actual template vs env var name
• deno.json: Removed --env=.envrc flag (now direnv script, not dotenv file)

Documentation

• ENV_SETUP.md: Corrected branch mapping table (shows .env + .env.$ENV loaded, not just env-specific)
• .env.production: Clarified production secrets use wrangler secret put, not .env.local
• .env.README.md: Fixed contradictory guidance (.envrc should be committed, never contains secrets)

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	adblock-compiler	78cadd7	Feb 03 2026, 09:02 PM