What

Tracking epic for aligning third-party dependency version overrides across all 8 ecosystem packages. A comprehensive vcpkg deployment readiness audit revealed inconsistencies in version pinning that could cause ABI incompatibilities or silent version drift when packages are used together.

• Current: Several systems omit overrides for shared third-party dependencies that peer systems pin
• Expected: All systems that use (directly or transitively) a shared dependency pin the same version in their vcpkg.json overrides
• Scope: vcpkg.json overrides sections across monitoring_system, database_system, pacs_system; compiler requirement documentation across monitoring_system, database_system, network_system

Why

• vcpkg resolves overrides per-manifest during library builds. If system A pins spdlog to 1.13.0 but system B doesn't pin it, system B may build against a different spdlog version — causing ABI mismatches when both are linked into a consumer project
• The ecosystem's DEPENDENCY_MATRIX.md defines standard versions, but not all systems enforce them via vcpkg overrides
• This is the last non-trivial blocker before ecosystem-wide vcpkg deployment readiness

Override Coverage Matrix (Current State)

Where

Compiler Documentation Gaps

How

Sub-Issues

Phase 1: Override Alignment (vcpkg.json fixes)

• fix(deps): Add benchmark 1.8.3 override to vcpkg.json monitoring_system#564 — fix(deps): Add benchmark 1.8.3 override
• fix(deps): Add grpc and protobuf version overrides to vcpkg.json database_system#458 — fix(deps): Add grpc and protobuf version overrides
• fix(deps): Add asio 1.30.2 override to vcpkg.json pacs_system#952 — fix(deps): Add asio 1.30.2 override

Phase 2: Documentation Alignment (README updates)

• docs: Update compiler requirements to reflect thread_system GCC 13+ dependency monitoring_system#565 — docs: Update compiler requirements (GCC 11+ → 13+)
• docs: Update compiler requirements to reflect thread_system GCC 13+ dependency database_system#459 — docs: Update compiler requirements (GCC 11+ → 13+)
• docs: Update compiler requirements to reflect thread_system GCC 13+ dependency network_system#848 — docs: Update compiler requirements (GCC 11+ → 13+)

Phase 3: Config Template & Build Fixes

• fix(cmake): Change common_system find_dependency from QUIET to REQUIRED in config template database_system#462 — fix(cmake): Change common_system find_dependency from QUIET to REQUIRED
• fix(cmake): Update outdated FetchContent fallback GIT_TAGs in UnifiedDependencies.cmake logger_system#509 — fix(cmake): Update outdated FetchContent fallback GIT_TAGs
• chore(vcpkg-ports): Expose grpc feature in monitoring_system overlay port monitoring_system#570 — chore(vcpkg-ports): Expose grpc feature in overlay port

Acceptance Criteria

• All systems sharing a third-party dependency pin the same version in overrides
• Override coverage matrix shows no ❌ for dependencies a system uses
• Compiler requirements in READMEs reflect transitive dependencies
• DEPENDENCY_MATRIX.md override coverage section is up-to-date
• Config templates use REQUIRED for mandatory dependencies
• FetchContent fallback GIT_TAGs match current ecosystem versions
• Port features are in sync with project manifest features