fix(cli): don't round issues-list bounty fill % up to (100%)

[davion-knight]

Summary

The all-issues table in gitt issues list formatted the bounty fill percentage with {fill_pct:.0f}%, which rounds. A bounty funded to 99.5–99.99% therefore rendered as (100%) right next to a Registered status — a self-contradiction, since an issue only flips to Active at a true 100% (fill_pct >= 100 is a separate branch). A tiny nonzero fill likewise rendered as (0%).

The fix uses .1f, matching the single-issue Panel view (view.py:141) which already formats the same value with one decimal.

Before / after — gitt issues list

Before (two partially-funded bounties):

┃ ID ┃ Repository ┃ Issue # ┃       Bounty Pool ┃   Status   ┃
│  1 │ owner/repo │     #42 │ 99.6/100.0 (100%) │ Registered │
│  2 │ owner/repo │     #43 │    0.3/100.0 (0%) │ Registered │

After:

┃ ID ┃ Repository ┃ Issue # ┃        Bounty Pool ┃   Status   ┃
│  1 │ owner/repo │     #42 │ 99.6/100.0 (99.6%) │ Registered │
│  2 │ owner/repo │     #43 │   0.3/100.0 (0.3%) │ Registered │

Related Issues

None.

Type of Change

• Bug fix

Testing

• Tests added — test_issues_list_table_fill_percent_is_not_rounded renders the real command via CliRunner and asserts the table shows the fractional percentage (99.6% / 0.3%) and never (100%) for a partially-funded bounty. Fails on test before the fix, passes after.
• Full suite green (961 passed), ruff + pyright clean.

Checklist

• Code follows project style guidelines
• Self-review completed
• Changes are documented (if applicable)

[davion-knight]

@anderdc @LandynDev small CLI correctness fix — the gitt issues list table rounded the bounty fill % with .0f, so a 99.6%-funded bounty printed (100%) next to a Registered status. Switched to .1f to match the single-issue Panel view (view.py:141). Before/after output + a regression test are included. Couldn't self-apply the bug label (no triage access) — flagging here.