feat: add db and multi-archive web UI foundation (#8)

* Add SQLite metadata database support

* Implement archive metadata database

* chore: let's guess cargoHash because there's something wrong with nixpkgs!

* Gate test-only database helpers behind cfg(test)

* Fix archive database row identity

* Use serde for archive metadata JSON

* Finalize archive runs at command level

* Handle archive command errors without panics

* Cover tweet entry metadata recording

* Document static regex invariants

* docs: add web UI design spec

* docs: add web UI implementation plan

* chore: move cli into workspace crate

* chore: track workspace crates directory

* refactor: extract archive core crate

* refactor: add core archive opening APIs

* refactor: rename taxonomy model to tags

* feat: add archive query APIs

* feat: add web server registry

* feat: expose archive server APIs

* feat: add archive table web UI

* fix: complete web UI smoke path

* docs: add architecture mental model

* docs: remove private superpowers plans

* nix: split cli and server packages

* chore: remove PLAN.md

Cargo.toml

@@ -1,13 +1,29 @@
-[package]
-name = "archivr"
+[workspace]
+members = [
+    "crates/archivr-core",
+    "crates/archivr-cli",
+    "crates/archivr-server",
+]
+resolver = "2"
+
+[workspace.package]
 version = "0.1.0"
 edition = "2024"
 
-[dependencies]
+[workspace.dependencies]
 anyhow = "1.0.100"
+axum = "0.7.9"
 chrono = "0.4.42"
 clap = { version = "4.5.48", features = ["derive"] }
 hex = "0.4.3"
 regex = "1.12.2"
+rusqlite = { version = "0.32.1", features = ["bundled"] }
+serde = { version = "1.0.228", features = ["derive"] }
+serde_json = "1.0.132"
 sha3 = "0.10.8"
+tempfile = "3.13.0"
+tokio = { version = "1.41.1", features = ["macros", "rt-multi-thread", "net"] }
+toml = "0.8.19"
+tower = "0.5.1"
+tower-http = { version = "0.6.2", features = ["fs", "trace"] }
 uuid = { version = "1.18.1", features = ["v4"] }