docs: add CI badges and LICENSE

Add GitHub Actions CI badge and Go Report Card badge to README.
Include MIT LICENSE file. Fix gofmt alignment and ineffectual
assignment in tests.

Author: aqstack

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 aqstack
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,5 +1,8 @@
 # Sentinel
 
+[![CI](https://github.com/aqstack/sentinel/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/aqstack/sentinel/actions/workflows/ci.yml)
+[![Go Report Card](https://goreportcard.com/badge/github.com/aqstack/sentinel)](https://goreportcard.com/report/github.com/aqstack/sentinel)
+
 Predictive failure detection and autonomous orchestration for Kubernetes edge nodes.
 
 ## What it does

cmd/predictor/main.go

@@ -45,15 +45,15 @@ type server struct {
 
 func main() {
 	var (
-		configFile = flag.String("config", "", "Path to config file (YAML or JSON)")
-		nodeName   = flag.String("node", "", "Node name (default: hostname)")
-		listenAddr = flag.String("listen", ":9101", "API listen address")
-		metricsAddr = flag.String("metrics", ":9100", "Prometheus metrics listen address")
-		interval   = flag.Duration("interval", time.Second, "Metrics collection interval")
+		configFile    = flag.String("config", "", "Path to config file (YAML or JSON)")
+		nodeName      = flag.String("node", "", "Node name (default: hostname)")
+		listenAddr    = flag.String("listen", ":9101", "API listen address")
+		metricsAddr   = flag.String("metrics", ":9100", "Prometheus metrics listen address")
+		interval      = flag.Duration("interval", time.Second, "Metrics collection interval")
 		consensusAddr = flag.String("consensus-addr", "", "Consensus listen address")
-		peers      = flag.String("peers", "", "Comma-separated peer addresses")
-		logLevel   = flag.String("log-level", "info", "Log level (debug, info, warn, error)")
-		logFormat  = flag.String("log-format", "text", "Log format (text, json)")
+		peers         = flag.String("peers", "", "Comma-separated peer addresses")
+		logLevel      = flag.String("log-level", "info", "Log level (debug, info, warn, error)")
+		logFormat     = flag.String("log-format", "text", "Log format (text, json)")
 
 		// Prediction thresholds
 		warnThreshold     = flag.Float64("warn-threshold", 0.3, "Warning threshold")

pkg/config/config.go

@@ -33,12 +33,12 @@ type ServerConfig struct {
 
 // PredictorConfig holds prediction engine settings.
 type PredictorConfig struct {
-	Interval              time.Duration `json:"interval" yaml:"interval"`
-	WarnThreshold         float64       `json:"warn_threshold" yaml:"warn_threshold"`
-	CriticalThreshold     float64       `json:"critical_threshold" yaml:"critical_threshold"`
-	MinConfidence         float64       `json:"min_confidence" yaml:"min_confidence"`
-	TimeToFailureWindow   time.Duration `json:"time_to_failure_window" yaml:"time_to_failure_window"`
-	RiskWeights           RiskWeights   `json:"risk_weights" yaml:"risk_weights"`
+	Interval            time.Duration `json:"interval" yaml:"interval"`
+	WarnThreshold       float64       `json:"warn_threshold" yaml:"warn_threshold"`
+	CriticalThreshold   float64       `json:"critical_threshold" yaml:"critical_threshold"`
+	MinConfidence       float64       `json:"min_confidence" yaml:"min_confidence"`
+	TimeToFailureWindow time.Duration `json:"time_to_failure_window" yaml:"time_to_failure_window"`
+	RiskWeights         RiskWeights   `json:"risk_weights" yaml:"risk_weights"`
 }
 
 // RiskWeights holds risk factor weights.
@@ -53,9 +53,9 @@ type RiskWeights struct {
 
 // ConsensusConfig holds consensus/partition settings.
 type ConsensusConfig struct {
-	Enabled   bool        `json:"enabled" yaml:"enabled"`
-	Addr      string      `json:"addr" yaml:"addr"`
-	Peers     []string    `json:"peers" yaml:"peers"`
+	Enabled   bool            `json:"enabled" yaml:"enabled"`
+	Addr      string          `json:"addr" yaml:"addr"`
+	Peers     []string        `json:"peers" yaml:"peers"`
 	RateLimit RateLimitConfig `json:"rate_limit" yaml:"rate_limit"`
 }
 

pkg/consensus/raft_lite_test.go

@@ -424,21 +424,12 @@ func TestTwoNodeCommunication(t *testing.T) {
 	// Wait for election to complete
 	time.Sleep(500 * time.Millisecond)
 
-	// One should be leader
-	leaders := 0
-	if node1.IsLeader() {
-		leaders++
-	}
-	if node2.IsLeader() {
-		leaders++
-	}
-
 	// In a 2-node cluster, we need both to agree on leader
 	// This test is somewhat flaky due to timing, so just log
-	t.Logf("Node1: state=%s, term=%d, leader=%s",
-		node1.State(), node1.Term(), node1.LeaderID())
-	t.Logf("Node2: state=%s, term=%d, leader=%s",
-		node2.State(), node2.Term(), node2.LeaderID())
+	t.Logf("Node1: state=%s, term=%d, leader=%s, isLeader=%v",
+		node1.State(), node1.Term(), node1.LeaderID(), node1.IsLeader())
+	t.Logf("Node2: state=%s, term=%d, leader=%s, isLeader=%v",
+		node2.State(), node2.Term(), node2.LeaderID(), node2.IsLeader())
 }
 
 func TestRateLimiterTokenBucket(t *testing.T) {