feat: add inline module support and improve version output

- Add inline module support to ModuleRef allowing modules to be defined directly in flows without external files
- Implement IsInline() and ToWorkflow() methods to convert inline ModuleRef definitions to executable workflows
- Update ModuleRef.Clone() to properly duplicate all fields including Steps, Runner, RunnerConfig, and Description
- Add field alignment formatting and make path optional for inline modules
- Enhance parser validation to allow omitting path for inline modules while requiring at least one step
- Update executor's preloadModules() and ExecuteFlow() to handle inline modules during flow execution
- Improve version command output with JSON format support via --json flag and enhanced colored terminal output

test/testdata/workflows/test-inline-modules.yaml

@@ -0,0 +1,40 @@
+name: test-inline-modules
+kind: flow
+description: Simple test flow with inline modules (no path references)
+
+params:
+  - name: target
+    required: true
+
+modules:
+  - name: greet-module
+    description: Simple greeting module
+    steps:
+      - name: greet
+        type: bash
+        command: echo "Hello, {{target}}!"
+        exports:
+          greeting: "{{StepOutput}}"
+
+  - name: info-module
+    description: Displays system info
+    depends_on:
+      - greet-module
+    steps:
+      - name: show-info
+        type: bash
+        command: echo "Target is {{target}}, greeting was {{greeting}}"
+      - name: date-step
+        type: bash
+        command: date +%Y-%m-%d
+        exports:
+          current_date: "{{StepOutput}}"
+
+  - name: final-module
+    description: Final summary module
+    depends_on:
+      - info-module
+    steps:
+      - name: summary
+        type: bash
+        command: echo "Flow completed on {{current_date}} for {{target}}"