Add UI-configurable InfrastructureSettings with DB+env fallback for all features

Add 5 NotebookLM parity features: Mind Map, Infographic, Slide Deck, Deep Research, Video Generator

fix(providers): expose OpenRouter embedding modality (#842)

feat: complete audio matrix (Google/Vertex TTS, Google/ElevenLabs STT) (#835)

feat: expose new audio providers (Mistral STT/TTS, Deepgram TTS, xAI TTS) (#834)

feat: bump esperanto to 2.22.0 + Ollama num_ctx override (#833)

fix: classify ollama embedding models correctly (#811)

fix(api): use configured base_url for OpenAI model discovery (#784)

fix(api): normalize openai_compatible provider name in models endpoint (#801)

fix: inject notebook name and description into chat system prompt (#719)

feat(api): add configurable CORS origins via CORS_ORIGINS (#767)

fix: narrow exception handling and support migrate_to for broken credentials

fix: handle credential decryption errors gracefully (#740)

fix: harden path validation to prevent sibling directory bypass

fix: prevent RCE via SSTI, path traversal file write, and LFI file read

fix: prevent SurrealDB injection via order_by and unparameterized queries

feat: add DashScope (Qwen) and MiniMax provider support

fix: persist source asset, preserve custom titles, cascade-delete credential models

Upgrade default Azure API Version for testing and fetching models (#638)

feat(podcasts): model registry integration, credential passthrough & new features (#632)

docs: update documentation for error handling and podcast retry (#599)

fix: podcast failure recovery and retry (1.7.3) (#595)

feat: improve error clarity for LLM provider failures (#506)

fix: word-wrap overflow in source cards, note editor, and inline edit

feat: expose embed command_id in note API responses (#545)

feat: credential-based API key management (#477) (#540)

fix: complete SqliteSaver async compatibility in chat routers (#525)

[Bug]: execute_command_sync receives 300 (int) as context instead of timeout. #537 (#538)

Fix re-embedding issues and improve retry strategy (#515)

fix: async insight creation to prevent transaction conflicts (#512)

feat: message counting for chat sessions (#430)

fix(api): initialize file_path before try block (#497)

feat: add cascade deletion for notebooks with delete preview (#471)

fix: run execute_command_sync in thread pool to avoid event loop conflict (#468)

fix: improve error logging for chat model configuration issues (#458)

feat: content-type aware chunking and unified embedding (#444)

fix(api): correct embedded flag check in source listing (#439)

perf: improve source listing speed by 20-30x (#436)

Feat/localization tests docker (#371)

Merge pull request #404 from lfnovo/fix/cors-headers-on-error-responses

fix: add CORS headers to error responses and document file upload limits

fix: include type in model duplicate check

Remove debug prefixes from production error logging

docs: generate comprehensive CLAUDE.md reference documentation across codebase

refactor: reorganize folder structure for better maintainability

fix: query key consistency and timeout configuration

fix: increase timeout for Ollama and local LLM operations

refactor: move environment variables loading to application entry point (#283)

fix: UI scrolling and API route ordering issues (#253)

Release 1.2 (#242)