agent: lumotia-rebrand — rust workspace crates magnotia-* -> lumotia-*

Phase 2 of the rebrand cascade. Renames all 9 workspace crates from
magnotia-* to lumotia-* plus the src-tauri binary crate name:

- magnotia-ai-formatting   -> lumotia-ai-formatting
- magnotia-audio           -> lumotia-audio
- magnotia-cloud-providers -> lumotia-cloud-providers
- magnotia-core            -> lumotia-core
- magnotia-hotkey          -> lumotia-hotkey
- magnotia-llm             -> lumotia-llm
- magnotia-mcp             -> lumotia-mcp
- magnotia-storage         -> lumotia-storage
- magnotia-transcription   -> lumotia-transcription
- magnotia                 -> lumotia (src-tauri binary)
- magnotia_lib             -> lumotia_lib (src-tauri lib target)

Crate directories (crates/audio/ etc.) stay as-is; only the Cargo.toml
[package] name field changes plus all consumer module imports
(magnotia_core -> lumotia_core, etc.).

Remaining magnotia_* references at this point are intentional and
scoped to later phases: tracing targets (Phase 4), DB setting keys
magnotia_preferences/magnotia_history (Phase 5).

cargo build --workspace passes. cargo test --workspace: 330 pass, 0 fail.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/ai-formatting/src/llm_client.rs

@@ -3,7 +3,7 @@
 //! The llm_client is not yet wired to a running model. This module defines
 //! the prompt contract so that wiring it produces correct, hardened output.
 
-use magnotia_llm::{EngineError, LlmEngine};
+use lumotia_llm::{EngineError, LlmEngine};
 
 /// System prompt sent before every cleanup call.
 ///
@@ -161,7 +161,7 @@ pub fn cleanup_text(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use magnotia_llm::EngineError;
+    use lumotia_llm::EngineError;
 
     #[test]
     fn empty_terms_returns_empty_string() {

crates/ai-formatting/src/pipeline.rs

@@ -1,6 +1,6 @@
-use magnotia_core::constants::SMART_PARAGRAPH_GAP_SECS;
-use magnotia_core::types::Segment;
-use magnotia_llm::LlmEngine;
+use lumotia_core::constants::SMART_PARAGRAPH_GAP_SECS;
+use lumotia_core::types::Segment;
+use lumotia_llm::LlmEngine;
 
 use crate::{llm_client, rule_based, to_plain_text::to_plain_text};
 

crates/ai-formatting/src/to_plain_text.rs

@@ -13,7 +13,7 @@
 //! is the whitespace pass and empty-segment filter, plus a single
 //! public function the pipeline can depend on.
 
-use magnotia_core::types::Segment;
+use lumotia_core::types::Segment;
 
 /// Join transcription segments into a single plain-text string
 /// suitable for feeding to an LLM cleanup prompt.