fix(mail): use slash-based identity format for addresses

Changes mail identity format from hyphenated (gastown-Toast) to
slash-based (gastown/polecats/Toast) to:
- Match directory structure (REST-like)
- Distinguish from hyphenated bead IDs (gt-xyz) and molecule names

Updated:
- addressToIdentity(): preserve slashes instead of replacing with dashes
- identityToAddress(): simplified, identity == address now
- detectSender(): include /polecats/ in polecat addresses
- Tests updated for new format

Closes gt-cxtu: shared beads architecture verified working.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/cmd/mail.go

@@ -554,14 +554,14 @@ func detectSender() string {
 		return "mayor/"
 	}
 
-	// If in a rig's polecats directory, extract address
+	// If in a rig's polecats directory, extract address (format: rig/polecats/name)
 	if strings.Contains(cwd, "/polecats/") {
 		parts := strings.Split(cwd, "/polecats/")
 		if len(parts) >= 2 {
 			rigPath := parts[0]
 			polecatPath := strings.Split(parts[1], "/")[0]
 			rigName := filepath.Base(rigPath)
-			return fmt.Sprintf("%s/%s", rigName, polecatPath)
+			return fmt.Sprintf("%s/polecats/%s", rigName, polecatPath)
 		}
 	}
 

internal/mail/mailbox.go

@@ -20,7 +20,7 @@ var (
 
 // Mailbox manages messages for an identity via beads.
 type Mailbox struct {
-	identity string // beads identity (e.g., "gastown-Toast")
+	identity string // beads identity (e.g., "gastown/polecats/Toast")
 	workDir  string // directory to run bd commands in
 	beadsDir string // explicit .beads directory path (set via BEADS_DIR)
 	path     string // for legacy JSONL mode (crew workers)

internal/mail/types.go

@@ -276,16 +276,15 @@ func ParseMessageType(s string) MessageType {
 
 // addressToIdentity converts a GGT address to a beads identity.
 //
-// Examples:
+// Addresses use slash format matching directory structure:
 //   - "mayor/" → "mayor/"
 //   - "mayor" → "mayor/"
 //   - "deacon/" → "deacon/"
 //   - "deacon" → "deacon/"
-//   - "gastown/Toast" → "gastown-Toast"
-//   - "gastown/refinery" → "gastown-refinery"
+//   - "gastown/polecats/Toast" → "gastown/polecats/Toast"
+//   - "gastown/crew/max" → "gastown/crew/max"
+//   - "gastown/refinery" → "gastown/refinery"
 //   - "gastown/" → "gastown" (rig broadcast)
-//   - "beads/crew/dave" → "beads-dave" (crew/ stripped)
-//   - "beads/polecats/nux" → "beads-nux" (polecats/ stripped)
 func addressToIdentity(address string) string {
 	// Town-level agents: mayor and deacon keep trailing slash
 	if address == "mayor" || address == "mayor/" {
@@ -300,36 +299,20 @@ func addressToIdentity(address string) string {
 		address = address[:len(address)-1]
 	}
 
-	// Normalize worker paths: strip crew/ and polecats/ from path
-	// beads/crew/dave → beads/dave (both resolve to beads-dave)
-	// beads/polecats/nux → beads/nux (both resolve to beads-nux)
-	address = strings.Replace(address, "/crew/", "/", 1)
-	address = strings.Replace(address, "/polecats/", "/", 1)
-
-	// Replace / with - for beads identity
-	// gastown/Toast → gastown-Toast
-	result := ""
-	for _, c := range address {
-		if c == '/' {
-			result += "-"
-		} else {
-			result = result + string(c)
-		}
-	}
-	return result
+	// Keep slashes - addresses map to directory structure
+	return address
 }
 
 // identityToAddress converts a beads identity back to a GGT address.
 //
-// Examples:
-//   - "mayor" → "mayor/"
+// Identity format matches address format (slash-based):
 //   - "mayor/" → "mayor/"
-//   - "deacon" → "deacon/"
 //   - "deacon/" → "deacon/"
-//   - "gastown-Toast" → "gastown/Toast"
-//   - "gastown-refinery" → "gastown/refinery"
+//   - "gastown/polecats/Toast" → "gastown/polecats/Toast"
+//   - "gastown/crew/max" → "gastown/crew/max"
+//   - "gastown/refinery" → "gastown/refinery"
 func identityToAddress(identity string) string {
-	// Town-level agents
+	// Town-level agents ensure trailing slash
 	if identity == "mayor" || identity == "mayor/" {
 		return "mayor/"
 	}
@@ -337,14 +320,6 @@ func identityToAddress(identity string) string {
 		return "deacon/"
 	}
 
-	// Find first dash and replace with /
-	// gastown-Toast → gastown/Toast
-	for i, c := range identity {
-		if c == '-' {
-			return identity[:i] + "/" + identity[i+1:]
-		}
-	}
-
-	// No dash found, return as-is with trailing slash
-	return identity + "/"
+	// Identity already in slash format, return as-is
+	return identity
 }

internal/mail/types_test.go

@@ -13,10 +13,11 @@ func TestAddressToIdentity(t *testing.T) {
 		{"deacon", "deacon/"},
 		{"deacon/", "deacon/"},
 
-		// Rig-level agents use dash separator
-		{"gastown/Toast", "gastown-Toast"},
-		{"gastown/refinery", "gastown-refinery"},
-		{"gastown/witness", "gastown-witness"},
+		// Rig-level agents: slash format matches directory structure
+		{"gastown/polecats/Toast", "gastown/polecats/Toast"},
+		{"gastown/crew/max", "gastown/crew/max"},
+		{"gastown/refinery", "gastown/refinery"},
+		{"gastown/witness", "gastown/witness"},
 
 		// Rig broadcast (trailing slash removed)
 		{"gastown/", "gastown"},
@@ -43,13 +44,14 @@ func TestIdentityToAddress(t *testing.T) {
 		{"deacon", "deacon/"},
 		{"deacon/", "deacon/"},
 
-		// Rig-level agents
-		{"gastown-Toast", "gastown/Toast"},
-		{"gastown-refinery", "gastown/refinery"},
-		{"gastown-witness", "gastown/witness"},
+		// Rig-level agents: identity == address (slash format)
+		{"gastown/polecats/Toast", "gastown/polecats/Toast"},
+		{"gastown/crew/max", "gastown/crew/max"},
+		{"gastown/refinery", "gastown/refinery"},
+		{"gastown/witness", "gastown/witness"},
 
-		// Rig name only (adds trailing slash)
-		{"gastown", "gastown/"},
+		// Rig name only (no transformation)
+		{"gastown", "gastown"},
 	}
 
 	for _, tt := range tests {