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refactor: remove legacy kb compatibility

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Drops the .kb/kb.db migration path, legacy backup filename handling, and
backward-compat test suites. Renames internal kbDir identifiers to
fusionDir and hasKbProject/isValidKbProject to their fusion equivalents.

- Remove needsCentralMigration, autoMigrateToCentral, and the
  "needs-migration" FirstRunState; checkAndMigrate and KB_SKIP_MIGRATION
  env var are gone
- Remove LEGACY_BACKUP_DIR and canonicalizeBackupDir; listBackups no
  longer matches kb-* filenames
- Delete backward-compat.test.ts and store-backward-compat.test.ts;
  update remaining tests to new 3-state first-run model

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
gsxdsm
2026-04-23 16:55:46 -07:00
parent f4e0850f9d
commit f20d0b5a18
36 changed files with 365 additions and 1194 deletions
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18
packages/core/src/db.ts
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@@ -618,16 +618,16 @@ export class Database {
private transactionDepth = 0;
private readonly _fts5Available: boolean;
constructor(kbDir: string) {
this.dbPath = join(kbDir, "fusion.db");
constructor(fusionDir: string) {
this.dbPath = join(fusionDir, "fusion.db");
if (!isAbsolute(kbDir)) {
throw new Error(`[fusion] Database constructor requires an absolute kbDir path, got: ${kbDir}`);
if (!isAbsolute(fusionDir)) {
throw new Error(`[fusion] Database constructor requires an absolute fusionDir path, got: ${fusionDir}`);
}
// Ensure .fusion directory exists
if (!existsSync(kbDir)) {
mkdirSync(kbDir, { recursive: true });
if (!existsSync(fusionDir)) {
mkdirSync(fusionDir, { recursive: true });
}
this.db = new DatabaseSync(this.dbPath);
@@ -1896,11 +1896,11 @@ export class Database {
/**
* Create a new Database instance (does NOT initialize schema).
* Callers must call `db.init()` separately.
* @param kbDir - Path to the `.fusion` directory (e.g., `/path/to/project/.fusion`)
* @param fusionDir - Path to the `.fusion` directory (e.g., `/path/to/project/.fusion`)
* @returns Database instance (not yet initialized)
*/
export function createDatabase(kbDir: string): Database {
return new Database(kbDir);
export function createDatabase(fusionDir: string): Database {
return new Database(fusionDir);
}
export { normalizeTaskComments };