Add 42 test cases for security-critical validation utility functions:
- TestStripNodeDelimiters (10 cases): IPv6 bracket handling, edge cases
- TestParseNodeIP (10 cases): IPv4/IPv6 parsing with bracket support
- TestNormalizeAllowlistEntry (11 cases): case normalization, whitespace
handling, IPv6 full form compression
- TestIPAllowed (11 cases): CIDR matching, hosts map lookup, nil handling
These functions are used for node allowlist validation to prevent SSRF
attacks in the sensor proxy.
Remove ~900 lines of unused code identified by static analysis:
Go:
- internal/logging: Remove 10 unused functions (InitFromConfig, New,
FromContext, WithLogger, etc.) that were built but never integrated
- cmd/pulse-sensor-proxy: Remove 7 dead validation functions for a
removed command execution feature
- internal/metrics: Remove 8 unused notification metric functions and
10 Prometheus metrics that were never wired up
Frontend:
- Delete ActivationBanner.tsx stub component
- Remove unused exports: stopMetricsSampler, getSamplerStatus,
formatSpeedCompact, parseMetricKey, getResourceAlerts
