V0.38.3 extension config sections (#236)

Co-authored-by: gobha <jasafpro@gmail.com>
Co-committed-by: gobha <jasafpro@gmail.com>

server/pages/loaders.go

@@ -95,6 +95,7 @@ type AdminPageData struct {
 	Users           []UserRow            `json:"users,omitempty"`
 	Roles           []RoleConfig         `json:"roles"`
 	Policies        any                  `json:"policies,omitempty"`
+	ConfigSections  []ConfigSectionEntry `json:"config_sections,omitempty"` // v0.38.3
 }
 
 // ChatPageData is what the chat surface templates receive.
@@ -110,14 +111,16 @@ type NotesPageData struct {
 // SettingsPageData is what the settings surface templates receive.
 // Feature gates (BYOK, personas) moved to sw.auth.policies in v0.37.19.
 type SettingsPageData struct {
-	Section string `json:"section"`
+	Section        string               `json:"section"`
+	ConfigSections []ConfigSectionEntry `json:"config_sections,omitempty"` // v0.38.3
 }
 
 // ── Loader registration ──────────────────────
 
 // TeamAdminPageData is what the team-admin surface receives.
 type TeamAdminPageData struct {
-	Section string `json:"section"`
+	Section        string               `json:"section"`
+	ConfigSections []ConfigSectionEntry `json:"config_sections,omitempty"` // v0.38.3
 }
 
 // ProjectsPageData is what the projects surface receives.
@@ -246,6 +249,9 @@ func (e *Engine) adminLoader(c *gin.Context, s store.Stores) (any, error) {
 		data.Users = e.loadUsers(ctx, s)
 	}
 
+	// v0.38.3: Discover extension config sections for admin surface
+	data.ConfigSections = configSectionsForSurface(ctx, s, "admin")
+
 	return data, nil
 }
 
@@ -409,7 +415,10 @@ func (e *Engine) teamAdminLoader(c *gin.Context, s store.Stores) (any, error) {
 	if section == "" {
 		section = "members"
 	}
-	return &TeamAdminPageData{Section: section}, nil
+	return &TeamAdminPageData{
+		Section:        section,
+		ConfigSections: configSectionsForSurface(context.Background(), s, "team-admin"),
+	}, nil
 }
 
 func (e *Engine) settingsLoader(c *gin.Context, s store.Stores) (any, error) {
@@ -418,10 +427,84 @@ func (e *Engine) settingsLoader(c *gin.Context, s store.Stores) (any, error) {
 		section = "general"
 	}
 
-	return &SettingsPageData{Section: section}, nil
+	return &SettingsPageData{
+		Section:        section,
+		ConfigSections: configSectionsForSurface(context.Background(), s, "settings"),
+	}, nil
 }
 
 func (e *Engine) projectsLoader(c *gin.Context, s store.Stores) (any, error) {
 	projectID := c.Param("id")
 	return &ProjectsPageData{ProjectID: projectID}, nil
 }
+
+// ── Config section discovery (v0.38.3) ───────
+//
+// Packages declare a config_section in their manifest. This helper scans
+// enabled packages and returns entries whose surfaces array includes the
+// target surface. No new tables or endpoints — purely manifest-driven.
+
+func configSectionsForSurface(ctx context.Context, s store.Stores, surfaceID string) []ConfigSectionEntry {
+	if s.Packages == nil {
+		return nil
+	}
+	pkgs, err := s.Packages.List(ctx)
+	if err != nil {
+		log.Printf("[pages] config sections: failed to list packages: %v", err)
+		return nil
+	}
+
+	var sections []ConfigSectionEntry
+	for _, pkg := range pkgs {
+		if !pkg.Enabled || pkg.Manifest == nil {
+			continue
+		}
+		csRaw, ok := pkg.Manifest["config_section"]
+		if !ok {
+			continue
+		}
+		cs, ok := csRaw.(map[string]any)
+		if !ok {
+			continue
+		}
+
+		// Check if this section targets the requested surface
+		surfacesRaw, _ := cs["surfaces"].([]any)
+		if len(surfacesRaw) == 0 {
+			continue
+		}
+		found := false
+		for _, v := range surfacesRaw {
+			if s, ok := v.(string); ok && s == surfaceID {
+				found = true
+				break
+			}
+		}
+		if !found {
+			continue
+		}
+
+		label, _ := cs["label"].(string)
+		if label == "" {
+			label = pkg.Title
+		}
+		icon, _ := cs["icon"].(string)
+		component, _ := cs["component"].(string)
+		if component == "" {
+			component = "js/config.js"
+		}
+		category, _ := cs["category"].(string)
+		if category == "" {
+			category = "system"
+		}
+
+		sections = append(sections, ConfigSectionEntry{
+			PackageID: pkg.ID,
+			Label:     label,
+			Icon:      icon,
+			Component: component,
+			Category:  category,
+		})
+	}
+	return sections
+}