Sprint 244 Plan: First-Pass Profile Autofill in Main Pipeline

Goal

Reduce dependence on external remediation loops by closing impact-profile coverage during initial pipeline generation.

Step 2264: Add first-pass profile autofill task synthesizer.
Step 2265: Integrate optional autofill injection into pipeline before coverage gate.
Step 2266: Merge autofill tasks into effective task set and summary telemetry.
Step 2267: Verify gate pass/fail behavior with autofill on/off under enforce mode.
Step 2268: Add Sprint244IntegrationSummary.h and execution tracker.