Log timestamps show UTC instead of the user's configured timezone

[kindralai]

Problem

Log timestamps in the admin Logs tab show UTC time instead of the user's configured timezone. For example, at 14:59 CEST (Europe/Zurich, UTC+2) the log shows 12:59:00.

Root cause

_BufferHandler.emit() at admin.py:456 formats timestamps using the system's local timezone:

"time": datetime.fromtimestamp(record.created).strftime("%H:%M:%S"),

datetime.fromtimestamp() without a tz argument uses the system/process timezone, which in Docker is typically UTC. The user's configured timezone is stored in the agent config (config.agent.timezone, default "Europe/Zurich") and is also editable via the You tab in the admin UI, but the log handler never reads it.

Affected area

• Logs tab (/partials/logs-content): every log line's time field is formatted in UTC
• The ts field (record.created) stores the correct UTC Unix timestamp, so the data is not lost — it's purely a display-time conversion issue

Proposed fix

In _BufferHandler.emit(), resolve the configured timezone and use it for formatting:

from zoneinfo import ZoneInfo

# Resolve the user's timezone (agent config, fallback UTC)
tz_name = "UTC"
if agent_state and agent_state.agent and agent_state.agent.config:
    tz_name = getattr(agent_state.agent.config.agent, "timezone", None) or tz_name

"time": datetime.fromtimestamp(
    record.created, tz=ZoneInfo(tz_name)
).strftime("%H:%M:%S"),

Alternatively, the timezone can be read from config_store.get("agent.timezone") if agent_state is unavailable (e.g. during startup before the agent is initialised).

Acceptance criteria

• Log timestamps show the user's configured timezone from the You tab
• When no timezone is configured (or during startup before the agent loads), fall back to UTC
• Changing the timezone in the You tab is reflected in new log lines (no restart needed)
• The ts field (Unix timestamp) is unaffected — it remains UTC for internal use
• Timezone change applies to newly emitted log lines only (historic lines keep their rendered time, which is acceptable)

[mattmezza]

@kindralai[bot] pls take care of this as well - you are going to be employee of the month!

[kindralai]

PR #290 opened — implements the fix. _BufferHandler.emit() now reads _LOG_TIMEZONE (module-level var, set via set_log_timezone(), wired up in main.py after config load). Tests added for UTC default and US/Eastern offset.