fix(formula): add dev build handling to local-install step

The local-install step now includes instructions for developers who
build bd from source. This ensures all bd binaries in PATH are updated,
not just the release binary downloaded by the install script.

Executed-By: beads/crew/emma
Rig: beads
Role: crew

.beads/formulas/beads-release.formula.toml

@@ -711,22 +711,49 @@ needs = ["verify-github", "verify-npm", "verify-pypi"]
 description = """
 Update local bd to the new version.
 
-Option 1 - Homebrew:
+**Step 1: Install release binary**
+
+Option A - Homebrew:
 ```bash
 brew upgrade bd
 ```
 
-Option 2 - Install script:
+Option B - Install script:
 ```bash
 curl -fsSL https://raw.githubusercontent.com/steveyegge/beads/main/scripts/install.sh | bash
 ```
 
-Verify:
+**Step 2: Check for dev builds (developers only)**
+
+If you build bd from source, you may have multiple `bd` binaries in your PATH:
 ```bash
-bd --version
+which -a bd
 ```
 
-Should show {{version}}.
+Common locations:
+- `~/.local/bin/bd` - release binary (installed above)
+- `~/go/bin/bd` - Go dev build
+- Project worktree builds
+
+**If you have a dev build that takes precedence**, rebuild from source:
+```bash
+# From the beads source directory
+make install
+
+# Or using go install directly
+go install -ldflags="-X main.Build=$(git rev-parse --short HEAD)" ./cmd/bd
+```
+
+**Verify ALL bd binaries are updated:**
+```bash
+# Check which bd runs by default
+which bd && bd --version
+
+# If you have go/bin/bd, verify it too
+test -f ~/go/bin/bd && ~/go/bin/bd --version
+```
+
+All should show {{version}}.
 """
 
 [[steps]]