Localize dsc-lib tracing and standardize builds

[Steve Lee (SteveL-MSFT)]

Hard-coded English tracing messages in dsc-lib bypass localization and make diagnostics inconsistent with the rest of the engine. This change moves those messages into en-us.toml and renders them through the rust_i18n::t!() macro.

It also adds repository-wide Copilot guidance requiring builds to run through build.ps1, ensuring grammar generation and other setup steps happen before Rust compilation instead of invoking Cargo directly.

Validation

• ./build.ps1 -Project dsc-lib

[Copilot]

🟢 Approval recommended

No unresolved review issues remain.

Pull request overview

This pull request localizes dsc-lib tracing messages and standardizes repository builds around build.ps1.

Changes:

• Replaced hard-coded tracing messages with rust_i18n::t!().
• Added corresponding English locale entries.
• Added repository and Copilot build guidance.

File summaries

File	Description
lib/dsc-lib/src/functions/mod_function.rs	Localizes mod tracing.
lib/dsc-lib/src/functions/max.rs	Localizes max tracing.
lib/dsc-lib/src/extensions/discover.rs	Localizes manifest import logging.
lib/dsc-lib/src/dscresources/dscresource.rs	Localizes resource tracing.
lib/dsc-lib/src/dscresources/command_resource.rs	Localizes command and process tracing.
lib/dsc-lib/src/discovery/command_discovery.rs	Localizes discovery diagnostics.
lib/dsc-lib/src/configure/mod.rs	Localizes configuration diagnostics.
lib/dsc-lib/src/configure/depends_on.rs	Localizes dependency-order tracing.
lib/dsc-lib/locales/en-us.toml	Adds translation keys.
.github/instructions/instructions.md	Documents standardized builds.
.github/copilot-instructions.md	Adds build guidance.

Review details

• Files reviewed: 11/11 changed files
• Comments generated: 0
• Review effort level: Lite

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[github-actions]

😊 Code Coverage Report

Changed Code Coverage

82% (80%+ coverage)

Metric	Value
Changed lines analyzed	41
Lines covered by tests	34
Coverage percentage	82%

🔵 Full Codebase Coverage

82% (good)

Metric	Value
Total executable lines	19400
Lines covered by tests	16085
Coverage percentage	82%

Changed code coverage measures only Rust lines added/modified in this PR.
Full codebase coverage measures all instrumented Rust lines across the project.