Harden feedback-driven continuity capture

[dlxeva]

What changed

• harden attributed Chinese owner scope-narrowing extraction for short capture drafts and long closeout transcripts
• keep source-less formal decisions minimal instead of filling empty boilerplate fields
• accept and classify Windows C:\\, C:/, and /c/ path forms
• add a reproducible cold-start FLG/no-FLG fixture and continuity-input report
• restore Core continuity to the README opening and place AML results as independent validation evidence
• consolidate the 2026-08-11 and 2026-08-16 misses into one confirmed P0 iteration

Why

Two real Chinese owner-scope decisions were missed, while a friend's Windows trial exposed cold-start continuity and path-handling gaps. This change turns those observations into bounded regressions and a reproducible local candidate.

Impact

Owner-attributed scope decisions survive both concise and long-form workflows with clearer provenance. Formal records contain fewer invented placeholders, and Windows-style paths receive explicit compatibility coverage.

Validation

• full test suite: 228 passed
• forced source-tree smoke: passed
• git diff --check: passed
• governance reindex: 46 formal decisions and 49 source episodes
• flg doctor --strict: Overall OK
• deterministic cold-start input preflight: ordinary files 1/6, FlowGrid pack 6/6

Unverified boundaries

• the candidate has not been executed on a real Windows host
• the cold-start fixture has not yet been run through two isolated fresh-agent sessions
• the A/B report measures continuity information availability only; it does not establish answer quality, user satisfaction, or cross-session improvement