[P6.6.2] Replace conductor.py print() calls with logger (headless-core violation)

[frankbria]

Problem

codeframe/core/conductor.py has 84 bare print() calls (Supervisor / GlobalFix / dependency-analysis chatter). The module already configures a logger (line 34) but uses print() for runtime output. Because conductor.py is imported by the FastAPI server (ui/routers/batches_v2.py, tasks_v2.py), these prints leak directly to server stdout.

This violates CLAUDE.md Architecture Rule #1 (core must be headless) and #3 (no UI/progress concepts in core). A few sibling prints exist on server-reachable paths too.

Evidence

• codeframe/core/conductor.py — 84 print() calls (e.g. lines 154, 160, 374, 692, 967)
• codeframe/core/tasks.py:812, :818 and codeframe/core/runtime.py:1020, :1091 — prints on server-reachable paths
• codeframe/core/events.py correctly uses Rich console.print (CLI-intended) — leave as-is.

Fix

• Replace the server-reachable print() calls in conductor.py / tasks.py / runtime.py with logger.* calls at appropriate levels.

Acceptance criteria

• No bare print() in conductor.py (and the named tasks.py/runtime.py lines) on server-reachable paths.
• Runtime chatter goes through logger.

Source: release-readiness audit 2026-06-13 (slop + backend agents). Cleanup, not function-breaking.

[coderabbitai]

🔗 Related PRs

#612 - chore: remove vestigial v1 context-tier code (ContextTier, importance_scorer) and dead tests (#611) [merged]

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