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+# Summary: 01-01 DataForSEO Cost Optimization
+
+## Plan
+
+`.paul/phases/01-dataforseo-cost-optimization/01-01-PLAN.md`
+
+## Completed
+
+- Added DataForSEO cost-policy helpers in `autoload/class.Cron.php`.
+- Added adaptive interval calculation for phrases without manual `days_offset`.
+- Preserved manual `days_offset` as the authoritative schedule override.
+- Changed DataForSEO candidate selection from a single SQL-selected phrase to a bounded candidate pool ordered by oldest `last_checked`, then filtered in PHP.
+- Removed the old `30/50/100` depth ladder.
+- Capped all DataForSEO v3 Google Organic requests at top 50.
+- Hardened result processing so "not found in returned top 50" stores position `0` without relying on an undefined `$site`.
+- Added depth and interval metadata to the cron success message.
+
+## Verification
+
+- `php -l autoload\class.Cron.php` - passed.
+- Confirmed no `100` literal remains in `autoload/class.Cron.php`.
+- Confirmed DataForSEO payloads use computed `$depth` from `getDfsDepth()`.
+- Confirmed both localization branches use the same computed depth.
+
+## Deviations
+
+- No SonarQube scan was run because only one source file was modified.
+- No codebase docs were updated because this plan changed one existing backend file and did not introduce schema, dependency, API, or multi-file architecture changes.
+
+## Files Modified
+
+- `autoload/class.Cron.php`
+- `.paul/STATE.md`
+- `.paul/phases/01-dataforseo-cost-optimization/01-01-SUMMARY.md`
+
+## Next
+
+Run `$paul-unify .paul/phases/01-dataforseo-cost-optimization/01-01-PLAN.md` to reconcile the implementation against the plan and close the loop.