Scalar, aggregate & collation extensions

These add SQL functions, operators, and collations. Blank-import the /auto package and they show up in any Where / Order / Select:

import (
  _ "gosqlite.org/ext/hash/auto"
  _ "gosqlite.org/ext/regexp/auto"
  _ "gosqlite.org/ext/uuid/auto"
)

db.Where("email REGEXP ?", `^.*@example\.com$`).Find(&users)
db.Select(`hex(sha256(body)) AS digest`).Find(&logs)
db.Where("ipcontains(?, src_ip)", "10.0.0.0/8").Find(&events)

Catalog

Package	What it adds
`regexp`	RE2 `REGEXP` operator + `regexp_*` scalars
`uuid`	`uuid()` v1–v7 (incl. DCE v2) + `uuid_str` / `uuid_blob` + extractors
`hash`	`md5` / `sha1` / `sha256` / `sha512` / `sha3` / `blake2b` / `blake3` / `xxh64`
`ipaddr`	`ipcontains` / `ipfamily` / `ipnetwork` over `net/netip`
`zorder`	Morton (Z-order) encoding for 2–24 dimensions
`stats`	variance / percentile / regr_* / median / mode aggregates + sliding-window inverses
`unicode`	Unicode-aware `upper` / `lower` / `normalize` / `unaccent` + `NOCASE_UNICODE` collation + locale collators
`encode`	`encode` / `decode` — base64 / base32 / base16 / ascii85 / url
`text`	rune-aware `text_reverse` / `text_repeat` / `text_lpad` / `text_rpad` / `text_split`
`fuzzy`	`levenshtein` / `damerau_levenshtein` / `hamming` / `jaro` / `jaro_winkler` / `soundex` / `caverphone`
`decimal`	exact base-10 `decimal_add`/`sub`/`mul`/`div`/`round`/… + `decimal_sum` aggregate (`math/big`)
`money`	fixed-2dp currency + `money_format`
`time`	`time_unix` / `add` / `diff` / `part` / `trunc` / `format` over Go `time`
`eval`	`eval(sql[, sep])` runs dynamic SQL on the calling connection (trusted input only)

Runnable demos under examples/features/extensions/ (e.g. hash, fuzzy, extras for decimal/money/time/eval). End-to-end against a gorm model: examples/features/gorm/ext-scalars/.