refactor(HAI-116): rename kb to hai across all packages, CLI, and docs

- Rename npm packages from @kb/* to @hai/* and update all workspace references
- Rename CLI binary from kb to hai and config directory from .kb to .hai
- Update dashboard UI branding, titles, and references from kb to hai
- Update all test files, CI workflows, and documentation to reflect new naming
- Run comprehensive grep verification to ensure no stale kb references remain

.github/workflows/test-release.yml

@@ -19,16 +19,16 @@ jobs:
         include:
           - os: ubuntu-latest
             target: bun-linux-x64
-            binary: hai-linux-x64
+            binary: kb-linux-x64
           - os: macos-latest
             target: bun-darwin-arm64
-            binary: hai-darwin-arm64
+            binary: kb-darwin-arm64
           - os: macos-13
             target: bun-darwin-x64
-            binary: hai-darwin-x64
+            binary: kb-darwin-x64
           - os: windows-latest
             target: bun-windows-x64
-            binary: hai-windows-x64.exe
+            binary: kb-windows-x64.exe
 
     steps:
       - name: Checkout
@@ -53,7 +53,7 @@ jobs:
         run: pnpm build
 
       - name: Build binary
-        run: pnpm --filter hai build:exe -- --target ${{ matrix.target }}
+        run: pnpm --filter @dustinbyrne/kb build:exe -- --target ${{ matrix.target }}
 
       - name: Verify binary exists
         shell: bash
@@ -132,7 +132,7 @@ jobs:
       - name: Combine artifacts
         run: |
           mkdir combined
-          find artifacts -type f \( -name "hai-*" -o -name "*.sha256" \) -exec cp {} combined/ \;
+          find artifacts -type f \( -name "kb-*" -o -name "*.sha256" \) -exec cp {} combined/ \;
           ls -la combined/
 
       - name: Upload combined archive