Bug
fj pr create crashes with a git2 config error when the current branch does not have a tracking remote configured, even when repo detection succeeds via other means (e.g., the origin fallback from #44).
Error
Error: config value 'branch.<name>.remote' was not found; class=Config (7); code=NotFound (-3)
Location:
src\prs.rs:941:31
Steps to reproduce
git checkout -b new-branch # no upstream tracking
git push origin new-branch # push without -u (or -u fails to set tracking)
fj pr create "Title" --base main
# Error: config value 'branch.new-branch.remote' was not found
Expected behavior
fj pr create should fall back to the resolved remote from RepoInfo::get_current() (or to origin) when the branch has no tracking remote, rather than crashing.
Workaround
Set tracking manually before creating the PR:
git branch --set-upstream-to=origin/new-branch
fj pr create "Title" --base main
Location
src/prs.rs:941 -- reads branch.<name>.remote from git config without handling the not-found case.
## Bug
`fj pr create` crashes with a git2 config error when the current branch does not have a tracking remote configured, even when repo detection succeeds via other means (e.g., the origin fallback from #44).
### Error
```
Error: config value 'branch.<name>.remote' was not found; class=Config (7); code=NotFound (-3)
Location:
src\prs.rs:941:31
```
### Steps to reproduce
```sh
git checkout -b new-branch # no upstream tracking
git push origin new-branch # push without -u (or -u fails to set tracking)
fj pr create "Title" --base main
# Error: config value 'branch.new-branch.remote' was not found
```
### Expected behavior
`fj pr create` should fall back to the resolved remote from `RepoInfo::get_current()` (or to `origin`) when the branch has no tracking remote, rather than crashing.
### Workaround
Set tracking manually before creating the PR:
```sh
git branch --set-upstream-to=origin/new-branch
fj pr create "Title" --base main
```
### Location
`src/prs.rs:941` -- reads `branch.<name>.remote` from git config without handling the not-found case.