v0.6.0 — Process logging for dialogic reflexivity

Added

• Process logging infrastructure — captures epistemically significant moments in researcher-AI dialogue (corrections, redirections, rejections, discoveries, conventions)
• log_process_event — manual logging with researchers exact words (in vivo)
• log_session_end — session summary with key decisions and unresolved questions
• Auto-logging: session_start in code_start/review_start, codes_written in code_write_segment, codes_revised in review_revise_codes
• methodology/dialogic_reflexivity.md — theoretical foundations (Bakhtin, Gadamer, Schon, postphenomenology)
• All auto-logging is best-effort — primary operations never fail due to logging