Feature:previous periods + first day of the week configuration

[zyrikby]

This pull request adds functionality of getting the data about the previous periods.
It also adds configuration of the first day of the week (it was before in a separate PR, however, I decided to combine them).
In this pull request, I've deleted the information about when the periods start because this makes the code more complicated (especially, if you want to add the same format for all types of periods).

Closes #36

[Copilot]

Pull Request Overview

This PR enhances the extension by adding Git branch–aware tracking, configurable week start, and reporting for previous periods, along with data‐management commands.

• Track and save coding sessions per Git branch and compute totals for yesterday, last week/month/year.
• Add weekStartDay configuration and update summary UI with branch filters.
• Register new commands for viewing and clearing stored data and update status bar to include branch info.

Reviewed Changes

Copilot reviewed 13 out of 26 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/timeTracker.ts	Introduce Git watcher, branch tracking, weekStartDay, and getAllPeriodTotals
src/summaryView.ts	Extend search, UI, and message payload to support branch filtering
src/statusBar.ts	Switch to getAllPeriodTotals, display current branch in tooltip
src/extension.ts	Add viewStorageData & clearAllData commands
src/database.ts	Migrate existing entries, add branch field, branch summary & filtering
package.json	Bump version, add weekStartDay setting and adjust saveInterval default
README.md	Update features and config section to reflect branch tracking and new defaults

Comments suppressed due to low confidence (5)

package.json:64

• [nitpick] The command ID uses a different prefix (coding-time-tracker) than the rest (simpleCodingTimeTracker). Rename to simpleCodingTimeTracker.clearAllData for consistency.

        "command": "coding-time-tracker.clearAllData",

src/statusBar.ts:1

• The StatusBar class implements Disposable but lacks a dispose() method to clear the interval and hide the status bar item. Add a dispose() that calls clearInterval(this.updateInterval) and this.statusBarItem.dispose().

import * as vscode from 'vscode';

src/timeTracker.ts:271

• The new getAllPeriodTotals method has complex date logic and branch inclusion. Consider adding unit tests to verify period boundaries and branch filtering.

    async getAllPeriodTotals(): Promise<{

README.md:57

• The default saveInterval was changed to 30 seconds in package.json. Update the README to reflect the new default.

     - Default: 5 seconds

src/timeTracker.ts:231

• The external-file handling logic was removed, so files outside the workspace now fall back to the first folder name. Restore logic to detect External/... for out-of-workspace files.

        if (workspaceFolders.length === 1) {

[Copilot]

The panel update message omits the branches property, so the branch dropdown won't populate when using the panel. Include branches in the payload like the webview view.

Suggested change

	this.panel.webview.postMessage({ command: 'update', data: summaryData, projects, totalTime, configData });
	this.panel.webview.postMessage({ command: 'update', data: summaryData, projects, branches, totalTime, configData });

[Copilot]

[nitpick] This async method is called from event callbacks without awaiting or catching errors. Consider catching rejections or removing async if not needed to avoid unhandled promise rejections.