Back-port v5 fix d310c257a to v6, adapted to v6's connection-status key
format. computeDiagnostics now merges a failed PVE/PBS diagnostics probe
with the monitor's live connection state: if the long-running poller still
reports the instance connected, a transient probe failure (network blip,
TLS re-check) no longer flips it to 'disconnected' in the UI. Uses v6's
'pve-<name>'/'pbs-<name>' status keys (v5 used a bare node name, which
would not match in v6). Adds a merge-logic regression test.
- Updated LicenseHandlers and LicenseService to be context/tenant aware
- Refactored API router and middleware to support tenant-scoped license checks
- Updated associated tests for context-aware handlers
Tests using /nonexistent/... paths fail in sandboxed environments
where they return 'permission denied' instead of 'not exists'.
Use /tmp/... paths instead which reliably return 'not exists'.
Covers all legacy threshold field detection paths including
CPU, Memory, Disk, DiskRead, DiskWrite, NetworkIn, NetworkOut,
and mixed modern/legacy configurations.
Test coverage for 9 pure functions in internal/api/diagnostics.go:
- isFallbackMemorySource: 13 cases covering fallback and non-fallback sources
- copyStringSlice: 4 cases including nil handling and copy verification
- normalizeHostForComparison: 16 cases for URL normalization
- normalizeVersionLabel: 11 cases for version prefix handling
- contains: 8 cases for string slice membership
- containsFold: 11 cases for case-insensitive matching
- interfaceToStringSlice: 9 cases for type conversion
- preferredDockerHostName: 5 cases for name preference hierarchy
- formatTimeMaybe: 3 cases for time formatting
