enable flexible folder creation for addon (e.g. /share/emhass)

[mime24]

With this pull request, we are laying the foundation for enabling the data path /share/emhass in the add-on.
The path specified in the options is checked and any missing subfolders are created.

This is a prerequisite for the adjustment in the add-on. refer to davidusb-geek/emhass-add-on#122

Summary by Sourcery

Enhancements:

• Relax the requirement for the configured data path to pre-exist by attempting to create the directory before using it and logging a warning if creation fails.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR changes how the add-on resolves and prepares its data_path: instead of only using an existing path from options, it now attempts to create the directory, logs a warning on failure, and conditionally updates the configuration, laying groundwork for using paths like /share/emhass.

Sequence diagram for updated data_path handling in build_secrets

sequenceDiagram
    actor User
    participant AddonRuntime
    participant utils_build_secrets as utils_build_secrets
    participant Pathlib as pathlib_Path
    participant Logger as logger

    User ->> AddonRuntime: start_addon_with_options
    AddonRuntime ->> utils_build_secrets: build_secrets(options, emhass_conf, ...)

    utils_build_secrets ->> utils_build_secrets: read options data_path
    alt data_path is not None
        utils_build_secrets ->> Pathlib: Path(options_data_path)
        activate Pathlib
        Pathlib -->> utils_build_secrets: data_path_object
        deactivate Pathlib

        utils_build_secrets ->> Pathlib: data_path_object.mkdir(parents=False, exist_ok=True)
        alt mkdir succeeds
            utils_build_secrets ->> utils_build_secrets: emhass_conf data_path = data_path_object
        else mkdir raises Exception
            utils_build_secrets ->> Logger: warning(cannot create data_path directory...)
            Logger -->> utils_build_secrets: done
            utils_build_secrets ->> utils_build_secrets: keep default emhass_conf data_path
        end
    else data_path is None
        utils_build_secrets ->> utils_build_secrets: keep default emhass_conf data_path
    end

    utils_build_secrets -->> AddonRuntime: updated emhass_conf
    AddonRuntime -->> User: addon running with resolved data_path

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Flow diagram for data_path directory creation logic

flowchart TD
    A[start_build_secrets] --> B{options_data_path_is_not_None}
    B -- Yes --> C["Create Path object from options data_path"]
    C --> D["Call mkdir on Path with parents=False and exist_ok=True"]
    D --> E{mkdir_raises_exception}
    E -- No --> F["Set emhass_conf data_path to created Path"]
    F --> G[end_build_secrets]
    E -- Yes --> H["Log warning via logger and keep default emhass_conf data_path"]
    H --> G
    B -- No --> I["Skip override and keep default emhass_conf data_path"]
    I --> G

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File-Level Changes

Change	Details	Files
Update data_path handling to allow creation of the directory specified in options and log meaningful warnings on failure.	Remove the requirement that the options-provided data_path must already exist before being used. Wrap data_path resolution and directory creation in a try/except block. Attempt to create the configured data_path directory with mkdir and use it in emhass_conf when successful. On any exception during directory creation, keep the default data_path and emit a warning including the error detail.	src/emhass/utils.py

---

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.95%. Comparing base (8774ddf) to head (c5ef730).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
src/emhass/utils.py	71.42%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #655   +/-   ##
=======================================
  Coverage   77.95%   77.95%           
=======================================
  Files          10       10           
  Lines        5057     5062    +5     
=======================================
+ Hits         3942     3946    +4     
- Misses       1115     1116    +1     

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