docs(config): comprehensive Configuration reference (every section)
Rewrite Configuration.md into a complete, runnable reference so anyone can set up
+ tune blumi from one page:
- Loading/layering (settings.json → project → env BLUMI_*), applying changes
(reload vs restart).
- Providers (preset table + kind/api_key_env/base_url) + full llm.* block.
- Every section with real fields + DEFAULTS + copy-paste JSON, grouped:
agent behavior (permissions, persona/personas, executor, brain, router, heal);
memory & knowledge (embeddings, memory, knowledge, acceleration) incl. the
enable + `blumi knowledge ingest` populate steps; surfaces (web, voice, gateway
telegram/discord/slack/whatsapp, grid, remote, workspaces, git); autonomy
(always_on, notify, hooks); tools (mcp_servers, lsp_servers).
- A realistic "putting it together" settings.json + auto-continue + the
MEMORY.md/USER.md files. Deep-dive cross-links throughout (all verified).
All fields/defaults transcribed from blumi-config structs (accurate, not invented).
Co-Authored-By: Blumi <ankur.nairit@gmail.com>