fix(cli): consistent output format, sorted findings, version flag

- Workflow rules now use strict if: evaluation (parse failure → skip rule,
  not match); fixes premature matching that blocked later rules and injected
  wrong variables into the context
- Single = accepted as alias for == in rules:if: expressions
- File/Line preserved through extends: resolution (lost during YAML
  encode/decode round-trip in the resolver)
- Findings sorted by (File, Line, Rule) so same-file issues group together
- All warnings use ruff-style path: [warning] message format (includes,
  extends chains, workflow non-start)
- Add --version / -v flag; version shown at top of every --help output
- Build injects version via ldflags using git describe

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/cicontext/reachability.go

@@ -42,7 +42,11 @@ func EvalWorkflow(p *model.Pipeline, ctx *Context) (bool, map[string]string) {
 	}
 	vars := ctx.Get
 	for _, rule := range p.Workflow.Rules {
-		if !ruleIfMatches(rule.If, vars) {
+		// Workflow rules use strict evaluation: an unparseable condition is
+		// treated as no-match so later rules (with valid conditions or a
+		// bare when:) are reached. Permissive-true would cause an early rule
+		// with a complex/invalid condition to block all subsequent rules.
+		if !ruleIfMatchesStrict(rule.If, vars) {
 			continue
 		}
 		when := rule.When
@@ -94,6 +98,13 @@ func ruleIfMatches(ifExpr string, vars func(string) string) bool {
 	return EvalIf(ifExpr, vars)
 }
 
+func ruleIfMatchesStrict(ifExpr string, vars func(string) string) bool {
+	if ifExpr == "" {
+		return true // no if: condition → rule always matches
+	}
+	return EvalIfStrict(ifExpr, vars)
+}
+
 func whenToState(when string) JobState {
 	switch when {
 	case "never":