Technical Diary (Day 1)

Room Cleaning / Environmental

Kitchen Sink

Completed necessary cleaning. Established automated recurring task (Every 3 days) to maintain hygiene and build the new habit.

Resource Trash

Cleared accumulated PET bottles, glass bottles, and cans. Required manual retrieval and bagging. Successfully disposed of them at the designated area.

Disposal Schedules

Established automated schedules: Recycling (Every 28 days) and Burnable Trash (Every 2 days) to standardize the disposal routine.

English Language

Shadowing Practice

Executed Shadowing Practice (3 minutes, Jensen Huang Keynote) to build fluency and technical vocabulary.

Internalized high-leverage phrases for senior discourse, including: "it stands to reason that" (Architectural Justification) and "epicenter."

Practiced "My Background" speech

Focusing on pronunciation mastery of "career" and "pivot" and fluent integration of phrases like "has likely declined from" and "a strong interest of mine."

Gym & Health

Completed minimum daily goal: 10 minutes running at 8~9 km/h.

Technical

Diagnosed critical production failure: Inertia client received stale HTML instead of expected JSON despite correct headers.

Performed systematic isolation (bypassed NGINX proxy via hosts file) to confirm root cause was backend application/runtime, not the ingress layer.

Subsequent deployment introduced a Bad Gateway outage (502). Diagnosed Traefik Ingress Controller failure to update its routing table (stale IP service discovery). Required service restart to restore function (6-min MTTR).

Executed Architectural Pivot (RoadRunner → Swoole) to eliminate unacceptable architectural risk and potential bug surface area in the runtime layer. Leveraging Claude Code accelerated the re-architecture.

Service restored and problem verified by external user report (proof of operational impact).