fix: resolve workspace:* protocol to enable npm install (#62)

* fix: replace workspace:* with file: protocol for npm compatibility

The workspace:* dependency on @selftune/telemetry-contract breaks
npm install because npm doesn't understand the workspace protocol.
Using file: instead works with both bun and npm since the package
is already bundled in the tarball via the files array.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: bump cli version to v0.2.6 [skip ci]

* fix: remove duplicate lockfile entry causing CI module resolution failure

The merge created a duplicate @selftune/telemetry-contract entry in
bun.lock (both workspace: and file: variants), which caused bun to
fail module resolution in CI.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: 3 people

bun.lock

@@ -1,6 +1,6 @@
 {
   "name": "selftune",
-  "version": "0.2.5",
+  "version": "0.2.6",
   "description": "Self-improving skills CLI for AI agents",
   "type": "module",
   "license": "MIT",
@@ -68,7 +68,7 @@
     "apps/*"
   ],
   "dependencies": {
-    "@selftune/telemetry-contract": "workspace:*"
+    "@selftune/telemetry-contract": "file:packages/telemetry-contract"
   },
   "devDependencies": {
     "@biomejs/biome": "^2.4.7",