feat: add page-fetcher-api — centralised Playwright page fetcher

Introduces page-fetcher-api, a new internal ASP.NET Core service that
centralises all web-page fetching through a single Playwright (headless
Chromium) browser instance. All fetches are persisted to the pageFetcher
SQL schema for auditing.

New projects:
- Apis/page-fetcher-api-models: FetchPageRequest, FetchPageResponse, IPageFetcherApiClient
- Apis/page-fetcher-data: PageFetchDbContext, PageFetchEntity, InitialSchema migration (schema: pageFetcher)
- Apis/page-fetcher-api: PlaywrightBrowserService (singleton), PageFetcherService, PageController

Changes to existing services:
- cv-matcher-api: JobTextExtractor now calls IPageFetcherApiClient instead of HttpClient
- cv-search-job: HtmlJobSearcher uses IPageFetcherApiClient (removes inline Playwright);
  CvSearchJobTask fetches individual job pages and applies keyword pre-filter before
  LLM call; passes pre-fetched JobDescription to cv-matcher-api to skip re-fetch
- common: add PageFetcherApiSettings
- docker-compose.yml, build.yml: add new service + env vars for callers

Closes #43

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose/docker-compose.yml

@@ -72,6 +72,9 @@ services:
       - RagApi__BaseUrl=${RagApi__BaseUrl:-http://rag-api:8080}
       - RagApi__InternalApiKey=${RagApi__InternalApiKey:-}
 
+      - PageFetcherApi__BaseUrl=${PageFetcherApi__BaseUrl:-http://myai-page-fetcher-api:8080}
+      - PageFetcherApi__InternalApiKey=${PageFetcherApi__InternalApiKey:-}
+
       - Ai__Provider=${Ai__Provider:-OpenAI}
       - Ai__OpenAI__ApiKey=${Ai__OpenAI__ApiKey:-}
       - Ai__OpenAI__ChatModel=${Ai__OpenAI__ChatModel:-gpt-4o-mini}
@@ -266,6 +269,9 @@ services:
       - EmailApi__BaseUrl=${EmailApi__BaseUrl:-http://email-api:8080}
       - EmailApi__InternalApiKey=${EmailApi__InternalApiKey:-}
 
+      - PageFetcherApi__BaseUrl=${PageFetcherApi__BaseUrl:-http://myai-page-fetcher-api:8080}
+      - PageFetcherApi__InternalApiKey=${PageFetcherApi__InternalApiKey:-}
+
       - FileStorage__Path=${FileStorage__Path:-Files}
 
       - JobSearch__Enabled=${JobSearch__Enabled:-true}
@@ -293,6 +299,38 @@ services:
     labels:
       - "com.centurylinklabs.watchtower.enable=true"
 
+  page-fetcher-api:
+    image: registry.easysoft.ro/apps/myai-page-fetcher-api:${IMAGE_TAG:-staging}
+    container_name: myai-page-fetcher-api
+    environment:
+      - ASPNETCORE_ENVIRONMENT=${ASPNETCORE_ENVIRONMENT:-Staging}
+      - ASPNETCORE_URLS=${ASPNETCORE_URLS:-http://+:8080}
+      - APP_ENVIRONMENT_NAME=${APP_ENVIRONMENT_NAME:-myai.staging}
+
+      - Database__Host=${Database__Host:-sqlserver}
+      - Database__Port=${Database__Port:-1433}
+      - Database__Name=${Database__Name:-MyAiDb}
+      - Database__User=${Database__User:-sa}
+      - Database__Password=${Database__Password:-}
+      - Database__TrustServerCertificate=${Database__TrustServerCertificate:-true}
+
+      - InternalApi__ApiKey=${PageFetcherApi__InternalApiKey:-}
+      - InternalApi__RequireApiKey=true
+
+      - SerilogEmail__From=${SerilogEmail__From:-}
+      - SerilogEmail__To=${SerilogEmail__To:-}
+      - SerilogEmail__Host=${SerilogEmail__Host:-}
+      - SerilogEmail__Port=${SerilogEmail__Port:-587}
+      - SerilogEmail__UserName=${SerilogEmail__UserName:-}
+      - SerilogEmail__Password=${SerilogEmail__Password:-}
+    volumes:
+      - ${LOGS_PATH:-/opt/myai/logs}/page-fetcher-api:/app/logs
+    networks:
+      - myai-network
+    restart: unless-stopped
+    labels:
+      - "com.centurylinklabs.watchtower.enable=true"
+
   web:
     image: registry.easysoft.ro/apps/myai-web:${IMAGE_TAG:-staging}
     container_name: myai-web