fix(exec): expand validPhases and remove schema enum constraint for phase

internal/exec/result.go

@@ -10,7 +10,7 @@ import (
 // validates its own output before returning.
 type Result struct {
 	Status       string `json:"status"`        // pass | fail | error
-	Phase        string `json:"phase"`         // red | green | refactor
+	Phase        string `json:"phase"`         // red | green | refactor | retrospective | review | debug | spec | trainer
 	Skill        string `json:"skill"`         // tdd | review | ...
 	FilePath     string `json:"file_path"`     // absolute path to generated file
 	RunnerOutput string `json:"runner_output"` // raw stdout+stderr from test runner
@@ -25,6 +25,10 @@ var validPhases = map[string]bool{
 	"green":         true,
 	"refactor":      true,
 	"retrospective": true,
+	"review":        true,
+	"debug":         true,
+	"spec":          true,
+	"trainer":       true,
 }
 
 func (r Result) Validate() error {
@@ -33,7 +37,7 @@ func (r Result) Validate() error {
 		errs = append(errs, "status must be pass|fail|error, got: "+r.Status)
 	}
 	if !validPhases[r.Phase] {
-		errs = append(errs, "phase must be red|green|refactor, got: "+r.Phase)
+		errs = append(errs, "phase must be one of red|green|refactor|retrospective|review|debug|spec|trainer, got: "+r.Phase)
 	}
 	if r.Skill == "" {
 		errs = append(errs, "skill is required")
@@ -50,7 +54,7 @@ const Schema = `{
   "required": ["status","phase","skill","file_path","runner_output","verified","model_used","message"],
   "properties": {
     "status":        {"type": "string", "enum": ["pass","fail","error"]},
-    "phase":         {"type": "string", "enum": ["red","green","refactor"]},
+    "phase":         {"type": "string"},
     "skill":         {"type": "string"},
     "file_path":     {"type": "string"},
     "runner_output": {"type": "string"},

internal/exec/result_test.go

@@ -69,3 +69,11 @@ func TestResultValidation(t *testing.T) {
 		})
 	}
 }
+
+func TestValidateAcceptsAllPhases(t *testing.T) {
+	phases := []string{"red", "green", "refactor", "retrospective", "review", "debug", "spec", "trainer"}
+	for _, phase := range phases {
+		r := exec.Result{Status: "pass", Phase: phase, Skill: "test", ModelUsed: "self", Message: "ok"}
+		assert.NoError(t, r.Validate(), "phase %q should be valid", phase)
+	}
+}