feat: add vector viz template and chunk context endpoint

Extracted vector visualization HTML template to separate file to resolve
syntax conflicts between Jinja2, Alpine.js, and CSS. Added chunk context
endpoint for fetching matched chunks with surrounding text.

Changes:
- Moved vector_viz.html to templates/ directory (separates Jinja2/Alpine.js/CSS)
- Added /app/chunk-context endpoint for retrieving chunk text with context
- Updated .dockerignore to include HTML files in Docker builds
- Moved anthropic and boto3 to main dependencies (needed for production features)
- Added jinja2 dependency for template rendering

Fixes Jinja2 TemplateSyntaxError caused by CSS colons being parsed as
Jinja2 syntax when template was inline in Python code.

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

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

.dockerignore

@@ -5,3 +5,4 @@
 !uv.lock
 
 !nextcloud_mcp_server/**/*.py
+!nextcloud_mcp_server/**/*.html

nextcloud_mcp_server/app.py

@@ -1478,6 +1478,7 @@ def get_app(transport: str = "sse", enabled_apps: list[str] | None = None):
         vector_sync_status_fragment,
     )
     from nextcloud_mcp_server.auth.viz_routes import (
+        chunk_context_endpoint,
         vector_visualization_html,
         vector_visualization_search,
     )
@@ -1509,6 +1510,11 @@ def get_app(transport: str = "sse", enabled_apps: list[str] | None = None):
             vector_visualization_search,
             methods=["GET"],
         ),  # /app/vector-viz/search
+        Route(
+            "/chunk-context",
+            chunk_context_endpoint,
+            methods=["GET"],
+        ),  # /app/chunk-context
         # Webhook management routes (admin-only)
         Route("/webhooks", webhook_management_pane, methods=["GET"]),  # /app/webhooks
         Route(

pyproject.toml

@@ -12,7 +12,7 @@ keywords = ["nextcloud", "mcp", "model-context-protocol", "llm", "ai", "claude",
 dependencies = [
     "mcp[cli] (>=1.21,<1.22)",
     "httpx (>=0.28.1,<0.29.0)",
-    "pillow (>=10.3.0,<12.0.0)",  # Compatible with fastembed
+    "pillow (>=10.3.0,<12.0.0)", # Compatible with fastembed
     "icalendar (>=6.0.0,<7.0.0)",
     "pythonvcard4>=0.2.0",
     "pydantic>=2.11.4",
@@ -22,7 +22,9 @@ dependencies = [
     "aiosqlite>=0.20.0", # Async SQLite for refresh token storage
     "authlib>=1.6.5",
     "qdrant-client>=1.7.0",
-    "fastembed>=0.4.2",  # BM25 sparse vector embeddings for hybrid search
+    "fastembed>=0.4.2", # BM25 sparse vector embeddings for hybrid search
+    "anthropic>=0.42.0", # For RAG evaluation with Anthropic LLMs
+    "boto3>=1.35.0", # For Amazon Bedrock provider (optional)
     # Observability dependencies
     "prometheus-client>=0.21.0", # Prometheus metrics
     "opentelemetry-api>=1.28.2", # OpenTelemetry API
@@ -32,6 +34,7 @@ dependencies = [
     "opentelemetry-instrumentation-logging>=0.49b2", # Logging integration
     "opentelemetry-exporter-otlp-proto-grpc>=1.28.2", # OTLP gRPC exporter
     "python-json-logger>=3.2.0", # Structured JSON logging
+    "jinja2>=3.1.6",
 ]
 classifiers = [
     "Development Status :: 4 - Beta",
@@ -103,8 +106,6 @@ module-root = ""
 
 [dependency-groups]
 dev = [
-    "anthropic>=0.42.0",  # For RAG evaluation with Anthropic LLMs
-    "boto3>=1.35.0",  # For Amazon Bedrock provider (optional)
     "commitizen>=4.8.2",
     "datasets>=3.3.0",  # For BeIR nfcorpus dataset loading
     "ipython>=9.2.0",

uv.lock

@@ -1861,12 +1861,15 @@ version = "0.40.0"
 source = { editable = "." }
 dependencies = [
     { name = "aiosqlite" },
+    { name = "anthropic" },
     { name = "authlib" },
+    { name = "boto3" },
     { name = "caldav" },
     { name = "click" },
     { name = "fastembed" },
     { name = "httpx" },
     { name = "icalendar" },
+    { name = "jinja2" },
     { name = "mcp", extra = ["cli"] },
     { name = "opentelemetry-api" },
     { name = "opentelemetry-exporter-otlp-proto-grpc" },
@@ -1885,8 +1888,6 @@ dependencies = [
 
 [package.dev-dependencies]
 dev = [
-    { name = "anthropic" },
-    { name = "boto3" },
     { name = "commitizen" },
     { name = "datasets" },
     { name = "ipython" },
@@ -1904,12 +1905,15 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "aiosqlite", specifier = ">=0.20.0" },
+    { name = "anthropic", specifier = ">=0.42.0" },
     { name = "authlib", specifier = ">=1.6.5" },
+    { name = "boto3", specifier = ">=1.35.0" },
     { name = "caldav", git = "https://github.com/cbcoutinho/caldav?branch=feature%2Fhttpx" },
     { name = "click", specifier = ">=8.1.8" },
     { name = "fastembed", specifier = ">=0.4.2" },
     { name = "httpx", specifier = ">=0.28.1,<0.29.0" },
     { name = "icalendar", specifier = ">=6.0.0,<7.0.0" },
+    { name = "jinja2", specifier = ">=3.1.6" },
     { name = "mcp", extras = ["cli"], specifier = ">=1.21,<1.22" },
     { name = "opentelemetry-api", specifier = ">=1.28.2" },
     { name = "opentelemetry-exporter-otlp-proto-grpc", specifier = ">=1.28.2" },
@@ -1928,8 +1932,6 @@ requires-dist = [
 
 [package.metadata.requires-dev]
 dev = [
-    { name = "anthropic", specifier = ">=0.42.0" },
-    { name = "boto3", specifier = ">=1.35.0" },
     { name = "commitizen", specifier = ">=4.8.2" },
     { name = "datasets", specifier = ">=3.3.0" },
     { name = "ipython", specifier = ">=9.2.0" },