Motivation:

* Improve test coverage
* Check test pass/fail status
* Monitor CI throughput

Modifications:

Enable macOS CI to be run on all merges to main and on a daily timer.

Result:

Improved test coverage run out-of-band at the moment so we can get a
feeling for if any changes need to be made in the repo or in the CI
pipelines to ensure timely and stable checks.

Motivation:

* Improve test coverage

Modifications:

Enable macOS CI to be run on pull request commits and make the use of
the nightly runner pool for main.yml jobs explicit.

Result:

Improved test coverage.

Add static SDK CI workflow which runs on commits to PRs, merges to main
and daily on main.

Motivation:

Swift 6.1 has been released, we should add it to our CI coverage.

Modifications:

Add additional Swift 6.1 jobs where appropriate in main.yml,
pull_request.yml

Result:

Improved test coverage.

Remove an inaccurate comment from the code.

### Motivation:

The removed comment incorrectly described the `flush()` method as not
having an effect when the flush mode is set to `.always`. Not only is
this the opposite of the actual behavior, in fact the method itself is
not affected by the flush mode at all; that check is made elsewhere.
Further, at the point where the check is made, the behavior is clearly
spelled out by the code making the check, so moving the comment there
seems redundant. As such, it seemed best to simply remove it altogether.

### Modifications:

Removed a comment.

### Result:

The inaccurate comment can no longer cause confusion.

Co-authored-by: Franz Busch <f.busch@apple.com>

…es (#363)

# Motivation

`SwiftLog` was created before DocC existed which meant that most of the
documentation was part of the `README` and we had a pretty bare bones
documentation catalog. We also have a second source of guidelines from
the SSWG. This results in a currently unsatisfying developer experience
where everyone has to go around looking for the content in mostly
undocumented places.

# Modifications

This PR overhauls the `README` and moves most of the content into the
documentation catalog. It also introduces a new section called "Best
practices" that are intended to replace the logging guides on swift.org
so that the content moves closer to where it belongs. To showcase such a
best practice this PR brings over the log level recommendation of
swift.org. The recommendation is mostly the same except that after
recent discussions we wanted to allow libraries to log at `info` level
when they encounter problems which they can't communicate through other
channels e.g. by throwing from a method.

# Result

With this PR we provide a nicer experience to our developers making it
easier for them to get started and understand how to properly log. We
also set ourselves up for expanding on the best practices around
logging.

# Motivation

In my previous PR, I overhauled the README and the DocC catalog. While
doing this I removed the guidance around how to implement a log handler.

# Modifications

This PR adds a DocC based guide containing the contents of the previous
README guidance.

# Result

Guidance around log handler implementation in a modern DocC format.

### Motivation:

`StreamLogHandler` has at some point in time acquired an extra
whitespace:

```
2025-07-18T10:09:12+0100 notice label : hello
                                     ^
                                     |
                                     this one is superfluous
```

but we don't typically put spaces in front of `:`s. This PR changes it
to

```
2025-07-18T10:09:12+0100 notice label: hello
                                     ^
                                     |
                                     no extra space
```

Additionally, if the label is empty (`""`), then we shouldn't print any
spaces there. So with an empty label, we go from

```
2025-07-18T10:09:12+0100 notice  : hello
                               ^^
                                |
                                two superfluous spaces
```

to

```
2025-07-18T10:09:12+0100 notice: hello
                               ^
                               |
                               no extra spaces
```



### Modifications:

- Remove superfluous space if label is not empty
- Remove two superfluous spaces if label is empty

### Result:

- Somewhat more compact output
- Nicer output