Add substring ID matching for all bd commands

- Enhanced ResolvePartialID to handle:
  - Bare hashes: 07b8c8 → bd-07b8c8
  - Prefix without hyphen: bd07b8c8 → bd-07b8c8
  - Full IDs: bd-07b8c8 (unchanged)
  - Substring matching: 07b → finds bd-07b8c8

- Added RPC support:
  - New OpResolveID operation
  - handleResolveID server handler
  - ResolveID client method

- Updated all commands to resolve IDs:
  - show, update, close, reopen
  - dep (add, remove, tree)
  - label (add, remove, list)

- Works in both daemon and direct modes

Fixes bd-0591c3

internal/rpc/client.go

@@ -255,6 +255,11 @@ func (c *Client) Show(args *ShowArgs) (*Response, error) {
 	return c.Execute(OpShow, args)
 }
 
+// ResolveID resolves a partial issue ID to a full ID via the daemon
+func (c *Client) ResolveID(args *ResolveIDArgs) (*Response, error) {
+	return c.Execute(OpResolveID, args)
+}
+
 // Ready gets ready work via the daemon
 func (c *Client) Ready(args *ReadyArgs) (*Response, error) {
 	return c.Execute(OpReady, args)

internal/rpc/protocol.go

@@ -25,6 +25,7 @@ const (
 	OpCommentList     = "comment_list"
 	OpCommentAdd      = "comment_add"
 	OpBatch           = "batch"
+	OpResolveID       = "resolve_id"
 
 	OpCompact         = "compact"
 	OpCompactStats    = "compact_stats"
@@ -104,6 +105,11 @@ type ShowArgs struct {
 	ID string `json:"id"`
 }
 
+// ResolveIDArgs represents arguments for the resolve_id operation
+type ResolveIDArgs struct {
+	ID string `json:"id"`
+}
+
 // ReadyArgs represents arguments for the ready operation
 type ReadyArgs struct {
 	Assignee   string `json:"assignee,omitempty"`

internal/rpc/server_issues_epics.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"github.com/steveyegge/beads/internal/types"
+	"github.com/steveyegge/beads/internal/utils"
 )
 
 // normalizeLabels trims whitespace, removes empty strings, and deduplicates labels
@@ -319,6 +320,31 @@ func (s *Server) handleList(req *Request) Response {
 	}
 }
 
+func (s *Server) handleResolveID(req *Request) Response {
+	var args ResolveIDArgs
+	if err := json.Unmarshal(req.Args, &args); err != nil {
+		return Response{
+			Success: false,
+			Error:   fmt.Sprintf("invalid resolve_id args: %v", err),
+		}
+	}
+
+	ctx := s.reqCtx(req)
+	resolvedID, err := utils.ResolvePartialID(ctx, s.storage, args.ID)
+	if err != nil {
+		return Response{
+			Success: false,
+			Error:   fmt.Sprintf("failed to resolve ID: %v", err),
+		}
+	}
+
+	data, _ := json.Marshal(resolvedID)
+	return Response{
+		Success: true,
+		Data:    data,
+	}
+}
+
 func (s *Server) handleShow(req *Request) Response {
 	var showArgs ShowArgs
 	if err := json.Unmarshal(req.Args, &showArgs); err != nil {

internal/rpc/server_routing_validation_diagnostics.go

@@ -168,6 +168,8 @@ func (s *Server) handleRequest(req *Request) Response {
 		resp = s.handleList(req)
 	case OpShow:
 		resp = s.handleShow(req)
+	case OpResolveID:
+		resp = s.handleResolveID(req)
 	case OpReady:
 		resp = s.handleReady(req)
 	case OpStats: