chore: move src/llama_stack/ui to src/llama_stack_ui (#4068)

# What does this PR do?
This better separates UI from backend code, which was a point of
confusion often for our beloved AI friends.


## Test Plan
CI

.github/dependabot.yml

@@ -22,7 +22,7 @@ updates:
       prefix: chore(python-deps)
 
   - package-ecosystem: npm
-    directory: "/llama_stack/ui"
+    directory: "/llama_stack_ui"
     schedule:
       interval: "weekly"
       day: "saturday"

.github/workflows/integration-auth-tests.yml

@@ -14,7 +14,7 @@ on:
     paths:
       - 'distributions/**'
       - 'src/llama_stack/**'
-      - '!src/llama_stack/ui/**'
+      - '!src/llama_stack_ui/**'
       - 'tests/integration/**'
       - 'uv.lock'
       - 'pyproject.toml'

.github/workflows/integration-tests.yml

@@ -14,7 +14,7 @@ on:
     types: [opened, synchronize, reopened]
     paths:
       - 'src/llama_stack/**'
-      - '!src/llama_stack/ui/**'
+      - '!src/llama_stack_ui/**'
       - 'tests/**'
       - 'uv.lock'
       - 'pyproject.toml'

.github/workflows/integration-vector-io-tests.yml

@@ -13,7 +13,7 @@ on:
       - 'release-[0-9]+.[0-9]+.x'
     paths:
       - 'src/llama_stack/**'
-      - '!src/llama_stack/ui/**'
+      - '!src/llama_stack_ui/**'
       - 'tests/integration/vector_io/**'
       - 'uv.lock'
       - 'pyproject.toml'

.github/workflows/pre-commit.yml

@@ -43,14 +43,14 @@ jobs:
         with:
           node-version: '20'
           cache: 'npm'
-          cache-dependency-path: 'src/llama_stack/ui/'
+          cache-dependency-path: 'src/llama_stack_ui/'
 
       - name: Set up uv
         uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
 
       - name: Install npm dependencies
         run: npm ci
-        working-directory: src/llama_stack/ui
+        working-directory: src/llama_stack_ui
 
       - name: Install pre-commit
         run: python -m pip install pre-commit

.github/workflows/python-build-test.yml

@@ -10,7 +10,7 @@ on:
     branches:
       - main
     paths-ignore:
-        - 'src/llama_stack/ui/**'
+        - 'src/llama_stack_ui/**'
 
 jobs:
   build:

.github/workflows/test-external.yml

@@ -9,7 +9,7 @@ on:
     branches: [ main ]
     paths:
       - 'src/llama_stack/**'
-      - '!src/llama_stack/ui/**'
+      - '!src/llama_stack_ui/**'
       - 'tests/integration/**'
       - 'uv.lock'
       - 'pyproject.toml'

.github/workflows/ui-unit-tests.yml

@@ -8,7 +8,7 @@ on:
   pull_request:
     branches: [ main ]
     paths:
-      - 'src/llama_stack/ui/**'
+      - 'src/llama_stack_ui/**'
       - '.github/workflows/ui-unit-tests.yml' # This workflow
   workflow_dispatch:
 
@@ -33,22 +33,22 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
-          cache-dependency-path: 'src/llama_stack/ui/package-lock.json'
+          cache-dependency-path: 'src/llama_stack_ui/package-lock.json'
 
       - name: Install dependencies
-        working-directory: src/llama_stack/ui
+        working-directory: src/llama_stack_ui
         run: npm ci
 
       - name: Run linting
-        working-directory: src/llama_stack/ui
+        working-directory: src/llama_stack_ui
         run: npm run lint
 
       - name: Run format check
-        working-directory: src/llama_stack/ui
+        working-directory: src/llama_stack_ui
         run: npm run format:check
 
       - name: Run unit tests
-        working-directory: src/llama_stack/ui
+        working-directory: src/llama_stack_ui
         env:
           CI: true
 

.github/workflows/unit-tests.yml

@@ -13,7 +13,7 @@ on:
       - 'release-[0-9]+.[0-9]+.x'
     paths:
       - 'src/llama_stack/**'
-      - '!src/llama_stack/ui/**'
+      - '!src/llama_stack_ui/**'
       - 'tests/unit/**'
       - 'uv.lock'
       - 'pyproject.toml'