* fix semantic search reindex
sqlite-vec added the `_info` shadow table in 0.1.6 and drops it unconditionally when a vec0 table is destroyed, so `DROP TABLE` on a table written by 0.17 failed with "SQL logic error" once 0.18 moved to 0.1.9. `SqliteQueueDatabase` queues non-SELECT statements and stores the exception on the cursor it returns, and nothing read those cursors, so the failed drop and every write after it went unreported while reindex still logged "Embedded N thumbnails". `drop_embeddings_tables()` now recreates the missing `_info` stub before dropping, and writes go through `execute_write()`, which waits on the cursor so failures raise. `INSERT OR REPLACE` is gone too, since vec0 implements neither REPLACE nor UPSERT and it always failed on an id already in the table, including under the 0.1.3 build 0.17 shipped.
* use lock
* show reindex failure in status bar
The recognized_license_plate event filter passed attacker-controlled patterns to re.search on the single serialized SQLite queue thread, letting any authenticated user freeze the whole application with a catastrophic regex. This swaps stdlib re for the regex module with a per-evaluation timeout so a pathological pattern is aborted instead of stalling every database operation.
* add regex support to events api for recognized_license_plate
* frontend
add ability to use regexes in the plate search box and add select all/clear all links to quickly select all filtered plates
* Use cosine distance metric for vec tables
* Only apply normalization to multi modal searches
* Catch possible edge case in stddev calc
* Use sigmoid function for normalization for multi modal searches only
* Ensure we get model state on initial page load
* Only save stats for multi modal searches and only use cosine similarity for image -> image search
* swap sqlite_vec for chroma in requirements
* load sqlite_vec in embeddings manager
* remove chroma and revamp Embeddings class for sqlite_vec
* manual minilm onnx inference
* remove chroma in clip model
* migrate api from chroma to sqlite_vec
* migrate event cleanup from chroma to sqlite_vec
* migrate embedding maintainer from chroma to sqlite_vec
* genai description for sqlite_vec
* load sqlite_vec in main thread db
* extend the SqliteQueueDatabase class and use peewee db.execute_sql
* search with Event type for similarity
* fix similarity search
* install and add comment about transformers
* fix normalization
* add id filter
* clean up
* clean up
* fully remove chroma and add transformers env var
* readd uvicorn for fastapi
* readd tokenizer parallelism env var
* remove chroma from docs
* remove chroma from UI
* try removing custom pysqlite3 build
* hard code limit
* optimize queries
* revert explore query
* fix query
* keep building pysqlite3
* single pass fetch and process
* remove unnecessary re-embed
* update deps
* move SqliteVecQueueDatabase to db directory
* make search thumbnail take up full size of results box
* improve typing
* improve model downloading and add status screen
* daemon downloading thread
* catch case when semantic search is disabled
* fix typing
* build sqlite_vec from source
* resolve conflict
* file permissions
* try build deps
* remove sources
* sources
* fix thread start
* include git in build
* reorder embeddings after detectors are started
* build with sqlite amalgamation
* non-platform specific
* use wget instead of curl
* remove unzip -d
* remove sqlite_vec from requirements and load the compiled version
* fix build
* avoid race in db connection
* add scale_factor and bias to description zscore normalization
