ibazel failing to restart JS application with heavy external dependencies

**Describe the bug**

Hey folks! I'm evaluating the use of `ibazel` with our monorepo and stumbled onto a relatively nasty bug where ibazel would fail to restart my relatively large JS application.

**Reproduction instructions**

https://github.com/markovejnovic/ibazel-js-repro

```bash
git clone https://github.com/markovejnovic/ibazel-js-repro.git
cd ibazel-js-repro
ibazel run //:dev
# wait until it prints 'hello world'
# edit src/main.ts to print a different string
# note ibazel doesn't catch it
```

**Expected behavior**

Ibazel restarts my target after a source file changes.

**Actual behavior**

Ibazel doesn't restart my target.

**Version (please complete the following information):**
- OS: macOS
- ibazel Version: iBazel - Version 0.29.0, present on `HEAD`
- Bazel version: 9.1.0

**Additional context**

I think the bug is in `ibazel.go:650`. When `labelsToWatch` filters for labels that should be watched, it has special handling for `localRepositories`. `aspect`'s external targets start with `@` and are referenced as `localRepositories`, which means that we hit the `break` in `ibazel.go:650`.

To be 100% honest, I don't really understand the intent behind this function and this was discovered by getting claude to sprinkle debug statements across the program, so I might be wrong in my guess, but changing the `break` to a `continue` does populate the `toWatch` list as I would expect.

Clone the linked ibazel-js-repro repository and run `ibazel run //:dev`, then edit `src/main.ts` to reproduce the missed restart. Read `ibazel.go:650` and the surrounding `labelsToWatch` handling, including `localRepositories`. Done means ibazel detects the source change and restarts the target with the external dependencies present.

Written by the indexing model from the issue text.