Find when your audience really clicks your Bitly links

**Objective:** Find the hours of the day and days of the week when links tagged `{tag}` (or, if `{tag}` is empty, links in `{group-name}`) get the most clicks, over the last `{lookback-days}` days (default 60).

**Step 1: Read hourly clicks**

If `{tag}` and `{group-name}` are both empty, ask the user for one and stop. Otherwise call `bitly-get-click-hour` with `date.from` = today minus `{lookback-days}` days, `date.to` = today, and `tags.contains` = `{tag}` or `group-name` = `{group-name}`. Raise `max-records` until the full set is returned.

**Step 2: Aggregate**

* Total clicks by `hour` (0 to 23).
* Total clicks by weekday, derived from `date`.
* Total clicks by weekday and hour, to find the 5 best slots.
* Count how many distinct days had any clicks; if fewer than 14, say the sample is thin.

**Step 3: Context**

Call `bitly-get-metric-bitlink-country` with the same tag or group filter. If more than half the clicks come from one country, say the hours mostly reflect that audience.

**Step 4: Report**

* The 5 best weekday-and-hour slots, with clicks and share of total
* The best 3 hours overall and the best 2 weekdays
* The quietest hours, to avoid
* A one-line recommendation for when to post next

**Rules & Guidelines:**

* Do not call `bitly-add-bitlink` or `bitly-update-bitlink`. This prompt is read-only.
* Hours are as Bitly reports them (usually UTC). Do not convert unless the user names a time zone, and then state the conversion you applied.
* Launch-day spikes skew the result: if one date carries more than 30% of clicks, also give the result with that date excluded.

**Validation:**

* If no rows come back, say there were no clicks in the window and stop.