fix(catalog): SHOW CONTEXT type filters match the refs table's casing

SHOW CONTEXT's relationship sections filter refs on TargetType/SourceType, but
the literals were lowercase ('entity', 'microflow', 'page') while the refs
builder stores them uppercase ('ENTITY', 'MICROFLOW', 'PAGE'). SQLite '=' is
case-sensitive, so 12 sub-queries silently matched nothing: "Entities Used",
"Microflows Using This Entity", "Pages Displaying This Entity", "Related
Entities", and the workflow context's microflow/page/entity sections all rendered
empty. (RefKind filters were already correct — RefKind is stored lowercase.)

Uppercase the 12 literals to match the stored values. Verified live on
MxGraphStudioDemo: `show context of` a microflow now lists the entity it creates,
and `show context of` that entity lists the 4 microflows and 3 pages using it.

SHOW CALLERS/CALLEES/REFERENCES/IMPACT (cmd_search.go) were unaffected — they are
kind-agnostic (references/impact) or RefKind-based (callers/callees use 'call'),
so they already work and pick up the new ref kinds automatically.

Also un-skip TestCatalogRefs_Association (association refs now extracted, gap 2)
and add TestCatalogRefs_ShowContextResolvesTypes to guard the casing. Both are
//go:build integration (need `mx create-project`, run in CI); verified live here
since this devcontainer's mx can't create projects.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: ako

mdl/executor/cmd_context.go

@@ -113,7 +113,7 @@ func assembleMicroflowContext(ctx *ExecContext, out *strings.Builder, name strin
 	out.WriteString("### Entities Used\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName, RefKind from refs
-		 where SourceName = '%s' and TargetType = 'entity'
+		 where SourceName = '%s' and TargetType = 'ENTITY'
 		 ORDER by RefKind, TargetName`, name))
 	if err == nil && result.Count > 0 {
 		out.WriteString("| Entity | Usage |\n")
@@ -212,7 +212,7 @@ func assembleEntityContext(ctx *ExecContext, out *strings.Builder, name string,
 	out.WriteString("### Microflows Using This Entity\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct SourceName, RefKind from refs
-		 where TargetName = '%s' and SourceType = 'microflow'
+		 where TargetName = '%s' and SourceType = 'MICROFLOW'
 		 ORDER by RefKind, SourceName limit 20`, name))
 	if err == nil && result.Count > 0 {
 		out.WriteString("| Microflow | Usage |\n")
@@ -232,7 +232,7 @@ func assembleEntityContext(ctx *ExecContext, out *strings.Builder, name string,
 	out.WriteString("### Pages Displaying This Entity\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct SourceName from refs
-		 where TargetName = '%s' and SourceType = 'page'
+		 where TargetName = '%s' and SourceType = 'PAGE'
 		 ORDER by SourceName limit 10`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -247,10 +247,10 @@ func assembleEntityContext(ctx *ExecContext, out *strings.Builder, name string,
 	out.WriteString("### Related Entities\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName, RefKind from refs
-		 where SourceName = '%s' and TargetType = 'entity'
+		 where SourceName = '%s' and TargetType = 'ENTITY'
 		 union
 		 select distinct SourceName, RefKind from refs
-		 where TargetName = '%s' and SourceType = 'entity'
+		 where TargetName = '%s' and SourceType = 'ENTITY'
 		 ORDER by RefKind, TargetName limit 10`, name, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -287,7 +287,7 @@ func assemblePageContext(ctx *ExecContext, out *strings.Builder, name string, de
 	out.WriteString("### Entities Used\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName from refs
-		 where SourceName = '%s' and TargetType = 'entity'
+		 where SourceName = '%s' and TargetType = 'ENTITY'
 		 ORDER by TargetName`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -302,7 +302,7 @@ func assemblePageContext(ctx *ExecContext, out *strings.Builder, name string, de
 	out.WriteString("### Microflows Called\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName from refs
-		 where SourceName = '%s' and TargetType = 'microflow'
+		 where SourceName = '%s' and TargetType = 'MICROFLOW'
 		 ORDER by TargetName limit 15`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -345,7 +345,7 @@ func assembleEnumerationContext(ctx *ExecContext, out *strings.Builder, name str
 	out.WriteString("### Used By Entities\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct SourceName from refs
-		 where TargetName = '%s' and SourceType = 'entity'
+		 where TargetName = '%s' and SourceType = 'ENTITY'
 		 ORDER by SourceName limit 15`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -360,7 +360,7 @@ func assembleEnumerationContext(ctx *ExecContext, out *strings.Builder, name str
 	out.WriteString("### Used By Microflows\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct SourceName from refs
-		 where TargetName = '%s' and SourceType = 'microflow'
+		 where TargetName = '%s' and SourceType = 'MICROFLOW'
 		 ORDER by SourceName limit 15`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -515,7 +515,7 @@ func assembleWorkflowContext(ctx *ExecContext, out *strings.Builder, name string
 	out.WriteString("### Microflows Called\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName, RefKind from refs
-		 where SourceName = '%s' and TargetType = 'microflow'
+		 where SourceName = '%s' and TargetType = 'MICROFLOW'
 		 ORDER by RefKind, TargetName`, name))
 	if err == nil && result.Count > 0 {
 		out.WriteString("| Microflow | Usage |\n")
@@ -532,7 +532,7 @@ func assembleWorkflowContext(ctx *ExecContext, out *strings.Builder, name string
 	out.WriteString("### Pages Used\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName, RefKind from refs
-		 where SourceName = '%s' and TargetType = 'page'
+		 where SourceName = '%s' and TargetType = 'PAGE'
 		 ORDER by TargetName`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {
@@ -547,7 +547,7 @@ func assembleWorkflowContext(ctx *ExecContext, out *strings.Builder, name string
 	out.WriteString("### Entities Used\n\n")
 	result, err = ctx.Catalog.Query(fmt.Sprintf(
 		`select distinct TargetName, RefKind from refs
-		 where SourceName = '%s' and TargetType = 'entity'
+		 where SourceName = '%s' and TargetType = 'ENTITY'
 		 ORDER by TargetName`, name))
 	if err == nil && result.Count > 0 {
 		for _, row := range result.Rows {

mdl/executor/roundtrip_catalog_refs_test.go

@@ -151,8 +151,6 @@ end;`, mod, mod)); err != nil {
 }
 
 func TestCatalogRefs_Association(t *testing.T) {
-	t.Skip("TODO: association references not yet extracted into refs table (RefKindAssociate defined but unused)")
-
 	env := setupTestEnv(t)
 	defer env.teardown()
 
@@ -169,7 +167,9 @@ func TestCatalogRefs_Association(t *testing.T) {
 	}
 
 	buildCatalogFull(t, env)
+	// An association emits an `associate` ref to each endpoint (FROM and TO).
 	assertRefExists(t, env, mod+".RefChild_RefParent", mod+".RefParent", "associate")
+	assertRefExists(t, env, mod+".RefChild_RefParent", mod+".RefChild", "associate")
 }
 
 func TestCatalogRefs_MultipleRefKindsToSameTarget(t *testing.T) {
@@ -412,6 +412,55 @@ end;`, mod, mod)); err != nil {
 	}
 }
 
+// TestCatalogRefs_ShowContextResolvesTypes guards against the case-mismatch that
+// silently broke SHOW CONTEXT's relationship sections: they filter on
+// TargetType/SourceType, but those literals were lowercase ('entity') while the
+// refs builder stores uppercase ('ENTITY'), and SQLite '=' is case-sensitive — so
+// "Entities Used" / "Microflows Using This Entity" always rendered empty.
+func TestCatalogRefs_ShowContextResolvesTypes(t *testing.T) {
+	env := setupTestEnv(t)
+	defer env.teardown()
+
+	mod := testModule
+
+	if err := env.executeMDL(fmt.Sprintf(`create or modify persistent entity %s.CtxEntity (Name: String(100));`, mod)); err != nil {
+		t.Fatal(err)
+	}
+	if err := env.executeMDL(fmt.Sprintf(`create microflow %s.CtxCreator () returns Boolean
+begin
+  $Obj = create %s.CtxEntity;
+  return true;
+end;`, mod, mod)); err != nil {
+		t.Fatal(err)
+	}
+
+	buildCatalogFull(t, env)
+
+	// Microflow context must list the entity it uses (TargetType = 'ENTITY').
+	env.output.Reset()
+	if err := env.executor.Execute(&ast.ShowStmt{
+		ObjectType: ast.ShowContext,
+		Name:       parseQualifiedName(mod + ".CtxCreator"),
+	}); err != nil {
+		t.Fatalf("show context of microflow failed: %v", err)
+	}
+	if mfCtx := env.output.String(); !strings.Contains(mfCtx, mod+".CtxEntity") {
+		t.Errorf("microflow context should list the entity it uses:\n%s", mfCtx)
+	}
+
+	// Entity context must list the microflow that uses it (SourceType = 'MICROFLOW').
+	env.output.Reset()
+	if err := env.executor.Execute(&ast.ShowStmt{
+		ObjectType: ast.ShowContext,
+		Name:       parseQualifiedName(mod + ".CtxEntity"),
+	}); err != nil {
+		t.Fatalf("show context of entity failed: %v", err)
+	}
+	if entCtx := env.output.String(); !strings.Contains(entCtx, mod+".CtxCreator") {
+		t.Errorf("entity context should list the microflow using it:\n%s", entCtx)
+	}
+}
+
 func TestCatalogRefs_ShowReferencesNoResults(t *testing.T) {
 	env := setupTestEnv(t)
 	defer env.teardown()