First slice: ledger-store (journal+blobs+sqlite) and ledger-mcp (18 tools, receipt policy)

crates/ledger-store/src/schema.rs

@@ -0,0 +1,64 @@
+//! SQLite schema and migrations.
+//!
+//! The projection schema. Amounts are TEXT (decimal strings) — never REAL.
+//! Migrations are numbered SQL scripts applied in order; `SCHEMA_VERSION`
+//! is the current version.
+
+/// Current schema version.
+pub const SCHEMA_VERSION: u32 = 1;
+
+/// Migrations, in order. `MIGRATIONS[i]` migrates from version `i` to `i+1`.
+pub const MIGRATIONS: &[&str] = &[r#"
+CREATE TABLE IF NOT EXISTS meta(
+  key TEXT PRIMARY KEY,
+  value TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS accounts(
+  id INTEGER PRIMARY KEY,
+  code TEXT UNIQUE NOT NULL,
+  name TEXT NOT NULL,
+  type TEXT NOT NULL,
+  parent INTEGER NULL,
+  placeholder INTEGER NOT NULL,
+  currency TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS entries(
+  id INTEGER PRIMARY KEY,
+  date TEXT NOT NULL,
+  description TEXT NOT NULL,
+  status TEXT NOT NULL,
+  reversal_of INTEGER NULL
+);
+CREATE TABLE IF NOT EXISTS lines(
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  entry_id INTEGER NOT NULL,
+  account_id INTEGER NOT NULL,
+  side TEXT NOT NULL,
+  amount TEXT NOT NULL,
+  currency TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS blobs(
+  sha256 TEXT PRIMARY KEY,
+  size_bytes INTEGER NOT NULL,
+  mime_type TEXT NOT NULL,
+  original_name TEXT NOT NULL,
+  created_at TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS attachments(
+  id INTEGER PRIMARY KEY,
+  blob_sha TEXT NOT NULL,
+  entry_id INTEGER NULL,
+  category TEXT NOT NULL,
+  description TEXT NULL,
+  created_at TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS events(
+  seq INTEGER PRIMARY KEY AUTOINCREMENT,
+  type TEXT NOT NULL,
+  payload TEXT NOT NULL,
+  created_at TEXT NOT NULL
+);
+CREATE INDEX IF NOT EXISTS idx_lines_entry ON lines(entry_id);
+CREATE INDEX IF NOT EXISTS idx_entries_date ON entries(date);
+CREATE INDEX IF NOT EXISTS idx_attachments_entry ON attachments(entry_id);
+"#];