Summary of Unified Execution Completion — Verification and Correction (2026-07-15)

Verification results of the user-provided "Execution Completion Summary"

Item-by-item verification of file system and runtime state, all confirmed:

• Deleted files: _sqlite-compat.bak-20260715.js / digital-staff/index.js.bak / temp_check_rules.js / smart-import-service.js (including utils copy) are all non-existent ✅
• better-sqlite3 reference: Only in sqlite-compat.js:25 entry point ✅
• sqlite3 reference: Only in ai-task-manager.js:6 (tech-debt, currently memory downgraded) ✅
• sql.js runtime reference: Only in ai-inspector.js read-only cache (5 instances, tech-debt); server/scripts/* are build/migration scripts, not runtime ✅
• sync-SCSAI-meta.js rewrite: 125 lines, 1 reference to compat singleton, 0 residual direct sql.js calls ✅
• Syntax validation 4/4 passed ✅
• database.js = 3-line re-export → database1.js (L36 createDatabase uses db-adapter→compat singleton), "underlying layer already uses singleton" confirmed ✅
• Live verification: Service up (PID 3268, port 3006), /api/health 200, /stats {total:2413, active:2386}, [RuleEngine] initialization complete, no ERROR/FAIL; WAL=wal, main database 2413 rules ✅

Tighten wording

Original summary statement "residual sql.js code references 0" is imprecise → should be "sql.js references in data write paths 0" (ai-inspector still has 5 read-only cache tech-debt instances, consistent with the "known tech-debt" section).

Important Correction (pointed out by user at 20:57)

Port 3006 locking has no relation to the root cause of stats 500.

The previous system summary attributing stats 500 to "port 3006 occupied by an orphaned process (PID 34364) running old code" — this was a misjudgment.

The true root cause is a three-layer code bug:

1. db-adapter did not export getDb → empty catch swallowed the error, then db degraded to a database1 module object (no prepare)
2. SQL keyword 'as create' (create is a reserved word) caused a syntax error under better-sqlite3
3. The old sciot_rules_v2 table lacked user_id/SCSAI_id columns, CREATE INDEX failed on missing columns

After a clean restart, stats returned to normal because the above three-layer code fixes took effect, not because "the orphaned process occupying the port was killed."

Conclusion: The suggestion to "solidify the logic of killing port 3006 for cleanup in run-server.bat" is not adopted — this suggestion is based on a false premise (port locking = root cause), is unrelated to the DB architecture fix, and is an unnecessary change.

Final State

• Write bypass: 0 — All data write paths go through the better-sqlite3 singleton + WAL ✅
• Known tech-debt (independent scheduling, no current data risk):
• ai-inspector.js sql.js read-only cache (API incompatibility + read-only semantics) — Low
• ai-task-manager.js sqlite3 driver (callback → sync requires full rewrite, currently memory downgrade) — Low
• database.js/database1.js legacy layer (underlying layer already uses singleton, only adds an extra indirection) — Zero