Add workspace configuration support

internal/core/config/env.go

@@ -42,6 +42,36 @@ func (c *Config) applyEnvOverridesWithLookup(lookup func(string) (string, bool))
 	if raw, ok := lookup("NOTARIUS_DIAGNOSTICS_RETENTION"); ok {
 		c.Diagnostics.Retention = diagnostics.RetentionMode(strings.TrimSpace(raw))
 	}
+	if raw, ok := lookup("NOTARIUS_WORKSPACE_DIR"); ok {
+		c.Workspace.Directory = strings.TrimSpace(raw)
+	}
+	if raw, ok := lookup("NOTARIUS_WORKSPACE_DIAGNOSTICS_ENABLED"); ok {
+		value, err := parseBoolEnv("NOTARIUS_WORKSPACE_DIAGNOSTICS_ENABLED", raw)
+		if err != nil {
+			return err
+		}
+		c.Workspace.Diagnostics.Enabled = value
+		c.Workspace.Diagnostics.enabledSet = true
+	}
+	if raw, ok := lookup("NOTARIUS_WORKSPACE_DIAGNOSTICS_RETENTION"); ok {
+		c.Workspace.Diagnostics.Retention = diagnostics.RetentionMode(strings.TrimSpace(raw))
+		c.Workspace.Diagnostics.retentionSet = true
+	}
+	if raw, ok := lookup("NOTARIUS_WORKSPACE_RESUME_ENABLED"); ok {
+		value, err := parseBoolEnv("NOTARIUS_WORKSPACE_RESUME_ENABLED", raw)
+		if err != nil {
+			return err
+		}
+		c.Workspace.Resume.Enabled = value
+	}
+	if raw, ok := lookup("NOTARIUS_WORKSPACE_DEBUG_ENABLED"); ok {
+		value, err := parseBoolEnv("NOTARIUS_WORKSPACE_DEBUG_ENABLED", raw)
+		if err != nil {
+			return err
+		}
+		c.Workspace.Debug.Enabled = value
+	}
+	c.RecomputeEffectiveDiagnostics()
 	return nil
 }
 
@@ -52,3 +82,11 @@ func parseIntEnv(name string, raw string) (int, error) {
 	}
 	return value, nil
 }
+
+func parseBoolEnv(name string, raw string) (bool, error) {
+	value, err := strconv.ParseBool(strings.TrimSpace(raw))
+	if err != nil {
+		return false, fmt.Errorf("%s: must be a boolean", name)
+	}
+	return value, nil
+}