storkit: create 466_story_configurable_timezone_in_project_toml_for_timer_scheduling

.storkit/work/1_backlog/466_story_configurable_timezone_in_project_toml_for_timer_scheduling.md

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+---
+name: "Configurable timezone in project.toml for timer scheduling"
+---
+
+# Story 466: Configurable timezone in project.toml for timer scheduling
+
+## User Story
+
+As a user running storkit in a container where TZ defaults to UTC, I want to configure my local timezone in project.toml so that timer HH:MM inputs are interpreted in my actual timezone.
+
+## Acceptance Criteria
+
+- [ ] Add a `timezone` field to project.toml (e.g. `timezone = "Europe/London"`)
+- [ ] next_occurrence_of_hhmm uses the configured timezone instead of chrono::Local
+- [ ] Falls back to chrono::Local if no timezone is configured
+- [ ] Timer confirmation message displays the time in the configured timezone
+- [ ] timer list command shows times in the configured timezone
+
+## Out of Scope
+
+- TBD