[WSLC] Generate session names when containerId is omitted

[Soham Das (SohamDas2021)]

📖 Description

Generate a unique mxc-wslc-<uuid> session name when a create-and-run WSLC request omits or empties containerId, avoiding WSLC_E_INVALID_SESSION_NAME. Explicit IDs remain unchanged; regression coverage and documentation are included.

🔗 References

Resolves #1484

🔍 Validation

• cargo fmt --all -- --check — passed
• cargo clippy -p mxc-sdk -p wxc --features wslc --all-targets -- -D warnings — passed
• cargo test -p mxc-sdk --features wslc --lib — 3168 passed, 7 ignored
• cargo test -p wxc — 70 passed
• node scripts/versioning/validate-configs.js — 410 configs validated
• cargo build -p wxc --bin wxc-exec --features wslc and target\debug\wxc-exec.exe --debug ..\tests\configs\wslc_no_container_id.json — passed with NO_CONTAINER_ID_OK, exit 0

✅ Checklist

• Signed the Contributor License Agreement
• Linked to an issue
• Updated documentation (if applicable)
• Updated Copilot instructions (if build, architecture, or conventions changed)
• If this PR changes Cargo.lock, the dependency-feed-check check passes (see pull request builds)

📋 Issue Type

• Bug fix
• Feature
• Task

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[Copilot]

🟢 Approval recommended

The scoped fix preserves explicit IDs, includes regression coverage, and has no identified blocking issues.

0 open findings

What changed in this PR

Fixes #1484 by generating unique WSLC session names when create-and-run requests omit or empty containerId, while preserving explicit IDs.

Changes:

• Generates mxc-wslc-<uuid> names and logs the resolved name.
• Adds unit and integration regression coverage.
• Documents optional IDs and backend-defined naming.

File	Description
tests/​scripts/​run_wslc_all_tests.ps1	Runs the omitted-ID regression case.
tests/​configs/​wslc_no_container_id.json	Adds a WSLC request without an ID.
src/​tools/​wxc/​src/​main.rs	Clarifies logging for unnamed requests.
src/​mxc-sdk/​src/​backends/​wslc/​common/​wsl_container_runner.rs	Generates session names and adds unit tests.
docs/​schema.md	Documents optional container IDs.
docs/​backends/​wslc/​wsl-container-getting-started.md	Explains WSLC session naming.

🧠 Review effort: Balanced

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