Update shared cache docs

[KevinGruber2001]

Summary by CodeRabbit

• Documentation
  • Clarified monitoring guidance for shared build cache metrics, including separate hit-rate checks for Gradle and Bazel and a new Bazel integrity signal to watch.
  • Updated provisioning instructions to reflect current cluster prerequisites and Helm setup steps.
  • Expanded the shared cache project docs to cover both Gradle and Bazel, including endpoint details, cache roles, and verification behavior.

[coderabbitai]

Caution

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 01d67ef4-8293-40b9-b26c-279405dc22f9

📥 Commits

Reviewing files that changed from the base of the PR and between 363a14e and 588f125.

📒 Files selected for processing (4)

• docs/admins/operations/monitoring-basics.md
• docs/admins/platform/provisioning.md
• docs/developer/projects/eduide-shared-cache.md
• docs/developer/projects/projects-overview.md

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📝 Walkthrough

Walkthrough

Documentation updates describing EduIDE Shared Cache and monitoring guidance now cover both Gradle and Bazel build caches, including new API endpoints and metrics. Provisioning docs remove trust-manager prerequisites and the theia-internal-tls Helm chart step. A project catalog entry was reordered.

Changes

Documentation updates

Layer / File(s)	Summary
EduIDE shared cache Gradle+Bazel documentation docs/developer/projects/eduide-shared-cache.md, docs/developer/projects/projects-overview.md	Key Features and API Endpoints sections updated to describe separate Gradle (/gradle/:key) and Bazel (/bazel/ac/:hash, /bazel/cas/:hash) support, reader/writer auth roles, optional artifact/CAS validation; project catalog entry reordered.
Monitoring docs for Gradle and Bazel cache metrics docs/admins/operations/monitoring-basics.md	Shared cache metrics description broadened to Gradle and Bazel; hit-rate guidance split per build system with added bazel_cache_hash_mismatches monitoring.
Provisioning docs simplification docs/admins/platform/provisioning.md	Removed trust-manager prerequisite and combined install/verify flow in favor of cert-manager-only instructions; removed theia-internal-tls chart references and its Helm install command.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• EduIDE/Docs#4: Both PRs modify the same docs/developer/projects/eduide-shared-cache.md API endpoint and role-based auth documentation.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update-shared-cache-docs

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