P16: TaxFilingController → FastEndpoints (AllEndpoints.cs)

- Migrate TaxFilingController to 6 FastEndpoints
- GetUpcoming, GetByClientId, GetById, Create, Update, Delete
- Backup original controller as .bak
- All endpoints require Bearer token auth

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/TaxBaik.Web/Controllers/TaxFilingController.cs.bak

@@ -0,0 +1,84 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using TaxBaik.Application.Services;
+using TaxBaik.Domain.Entities;
+
+namespace TaxBaik.Web.Controllers;
+
+[ApiController]
+[Route("api/[controller]")]
+[Authorize]
+public class TaxFilingController : ControllerBase
+{
+    private readonly TaxFilingService _taxFilingService;
+
+    public TaxFilingController(TaxFilingService taxFilingService)
+    {
+        _taxFilingService = taxFilingService;
+    }
+
+    [HttpGet("upcoming")]
+    public async Task<IActionResult> GetUpcoming([FromQuery] int daysAhead = 30)
+    {
+        var filings = await _taxFilingService.GetUpcomingAsync(daysAhead);
+        return Ok(new { data = filings });
+    }
+
+    [HttpGet("client/{clientId}")]
+    public async Task<IActionResult> GetByClientId(int clientId)
+    {
+        var filings = await _taxFilingService.GetByClientIdAsync(clientId);
+        return Ok(new { data = filings });
+    }
+
+    [HttpGet("{id}")]
+    public async Task<IActionResult> GetById(int id)
+    {
+        var filing = await _taxFilingService.GetByIdAsync(id);
+        if (filing == null)
+            return NotFound(new ProblemDetails { Title = "신고 일정을 찾을 수 없습니다.", Status = StatusCodes.Status404NotFound });
+
+        return Ok(filing);
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> Create([FromBody] TaxFiling filing)
+    {
+        try
+        {
+            var filingId = await _taxFilingService.CreateAsync(filing);
+            var result = await _taxFilingService.GetByIdAsync(filingId);
+            return CreatedAtAction(nameof(GetById), new { id = filingId }, result);
+        }
+        catch (Exception ex)
+        {
+            return BadRequest(new ProblemDetails { Title = ex.Message, Status = StatusCodes.Status400BadRequest });
+        }
+    }
+
+    [HttpPut("{id}")]
+    public async Task<IActionResult> Update(int id, [FromBody] TaxFiling filing)
+    {
+        filing.Id = id;
+        try
+        {
+            await _taxFilingService.UpdateAsync(filing);
+            var result = await _taxFilingService.GetByIdAsync(id);
+            if (result == null)
+                return NotFound(new ProblemDetails { Title = "신고 일정을 찾을 수 없습니다.", Status = StatusCodes.Status404NotFound });
+
+            return Ok(result);
+        }
+        catch (Exception ex)
+        {
+            return BadRequest(new ProblemDetails { Title = ex.Message, Status = StatusCodes.Status400BadRequest });
+        }
+    }
+
+    [HttpDelete("{id}")]
+    public async Task<IActionResult> Delete(int id)
+    {
+        await _taxFilingService.DeleteAsync(id);
+        return NoContent();
+    }
+}