fix(cli): Add scrolling and text wrapping to task management view (#203)

## Summary

- ✅ Add viewport support for scrolling long task conversation histories
in task management view
- ✅ Implement keyboard shortcuts for easy navigation (↑↓/j/k, PgUp/PgDn,
g/G)
- ✅ Fix text wrapping to prevent content from being cut off at screen
edge
- ✅ Keep footer with keyboard hints fixed at bottom (non-scrolling)
- ✅ Bump golangci-lint from v2.5.0 to v2.6.0 (resolves false positive
linting issues)

## Changes

### Task Management View Enhancements

1. **Scrolling Support**
- Added Bubble Tea viewport component to enable scrolling through long
task histories
   - Viewport updates dimensions on window resize

2. **Keyboard Navigation**
   - `↑`/`k` and `↓`/`j` - Line-by-line scrolling
   - `PgUp`/`b` and `PgDn`/`f`/`Space` - Page scrolling
   - `g` - Jump to top
   - `G` - Jump to bottom

3. **Text Wrapping**
- Applied responsive text wrapping using
`shared.FormatResponsiveMessage()`
- Adjusted text width calculation to account for indentation and
viewport margins
   - Prevents text from being cut off at screen edge

4. **Fixed Footer**
   - Separated footer from scrollable content
   - Footer with keyboard hints always visible at bottom

### Linter Updates

- Updated flox environment manifest to use golangci-lint v2.6.0
- Updated CI workflow to use golangci-lint v2.6.0
- Resolves SA5011 false positive staticcheck issues in test files

## Test Plan

- [x] Built successfully with `go build`
- [x] Linting passes with `task lint`
- [x] Text wraps correctly within viewport bounds
- [x] Scrolling works with all keyboard shortcuts
- [x] Footer stays fixed at bottom
- [x] Window resize updates viewport dimensions properly

## Fixes

Resolves issue where:
- Long task conversation histories couldn't be scrolled
- Text was being cut off at the screen edge

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

Author: edenreich

.flox/env/manifest.lock

@@ -25,7 +25,7 @@ gh.version = "2.82.1"
 gh.pkg-group = "vcs"
 
 golangci-lint.pkg-path = "golangci-lint"
-golangci-lint.version = "2.5.0"
+golangci-lint.version = "2.6.0"
 golangci-lint.pkg-group = "linting"
 
 pre-commit.pkg-path = "pre-commit"

.flox/env/manifest.toml

@@ -64,7 +64,7 @@ jobs:
     - name: Install golangci-lint
       uses: golangci/golangci-lint-action@v8.0.0
       with:
-        version: v2.5.0
+        version: v2.6.0
         args: --timeout=5m
 
   vet: