feat(workflows): add dispatch, view, enable and disable subcommands (#952)

## Summary

- Add `tea actions workflows dispatch` to trigger `workflow_dispatch` events with `--ref`, `--input key=value`, and `--follow` for log tailing
- Add `tea actions workflows view` to show workflow details
- Add `tea actions workflows enable` and `disable` to toggle workflow state
- Rewrite `workflows list` to use the Workflow API instead of file listing
- Remove dead `WorkflowsList` print function that used `ContentsResponse`
- Update `CLI.md` and `example-workflows.md` with usage documentation and examples

## Motivation

Enable re-triggering specific workflows from the CLI, which is essential for AI-driven PR flows where a specific workflow needs to be re-run after pushing changes.

Leverages the 5 workflow API endpoints already supported by the Go SDK (v0.24.1) from go-gitea/gitea#33545:
- `ListRepoActionWorkflows`
- `GetRepoActionWorkflow`
- `DispatchRepoActionWorkflow` (with `returnRunDetails` support)
- `EnableRepoActionWorkflow`
- `DisableRepoActionWorkflow`

## New commands

\`\`\`
tea actions workflows
├── list          (rewritten to use Workflow API)
├── view <id>     (new)
├── dispatch <id> (new)
├── enable <id>   (new)
└── disable <id>  (new)
\`\`\`

### Usage examples

\`\`\`bash
# Dispatch workflow on current branch
tea actions workflows dispatch deploy.yml

# Dispatch with specific ref and inputs
tea actions workflows dispatch deploy.yml --ref main --input env=staging --input version=1.2.3

# Dispatch and follow logs
tea actions workflows dispatch ci.yml --ref feature/my-pr --follow

# View workflow details
tea actions workflows view deploy.yml

# Enable/disable workflows
tea actions workflows enable deploy.yml
tea actions workflows disable deploy.yml --confirm
\`\`\`

## Test plan

- [x] `go build ./...` passes
- [x] `go test ./...` passes
- [x] `go vet ./...` passes
- [x] `make lint` — 0 issues
- [x] `make docs-check` — CLI.md is up to date
- [x] Manual test: `tea actions workflows list` shows workflows from API
- [x] Manual test: `tea actions workflows dispatch <workflow> --ref main` triggers a run
- [x] Manual test: `tea actions workflows view <workflow>` shows details

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/gitea/tea/pulls/952
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Co-committed-by: Bo-Yi Wu <appleboy.tw@gmail.com>

docs/example-workflows.md

@@ -1,8 +1,93 @@
 # Gitea actions workflows
 
+## Workflow management with tea
+
+### List workflows
+
+```bash
+# List all workflows in the repository
+tea actions workflows list
+```
+
+### View workflow details
+
+```bash
+# View details of a specific workflow by ID or filename
+tea actions workflows view deploy.yml
+```
+
+### Dispatch (trigger) a workflow
+
+```bash
+# Dispatch a workflow on the current branch
+tea actions workflows dispatch deploy.yml
+
+# Dispatch on a specific branch
+tea actions workflows dispatch deploy.yml --ref main
+
+# Dispatch with workflow inputs
+tea actions workflows dispatch deploy.yml --ref main --input env=staging --input version=1.2.3
+
+# Dispatch and follow log output
+tea actions workflows dispatch ci.yml --ref feature/my-pr --follow
+```
+
+### Enable / disable workflows
+
+```bash
+# Disable a workflow
+tea actions workflows disable deploy.yml --confirm
+
+# Enable a workflow
+tea actions workflows enable deploy.yml
+```
+
+## Example: Re-trigger CI from an AI-driven PR flow
+
+Use `tea actions workflows dispatch` to re-run a specific workflow after
+pushing changes in an automated PR workflow:
+
+```bash
+# Push changes to a feature branch, then re-trigger CI
+git push origin feature/auto-fix
+tea actions workflows dispatch check-and-test --ref feature/auto-fix --follow
+```
+
+## Example: Dispatch a workflow with `workflow_dispatch` trigger
+
+```yaml
+name: deploy
+
+on:
+  workflow_dispatch:
+    inputs:
+      env:
+        description: "Target environment"
+        required: true
+        default: "staging"
+      version:
+        description: "Version to deploy"
+        required: true
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Deploy
+        run: |
+          echo "Deploying version ${{ gitea.event.inputs.version }} to ${{ gitea.event.inputs.env }}"
+```
+
+Trigger this workflow from the CLI:
+
+```bash
+tea actions workflows dispatch deploy.yml --ref main --input env=production --input version=2.0.0
+```
+
 ## Merge Pull request on approval
 
-``` Yaml
+```yaml
 ---
 name: Pull request
 on: