EXT-19: add lc issue view command with v alias

Readme.adoc

@@ -160,6 +160,7 @@ so you don't have to type the full name every time:
 |`issue assign` |`a`
 |`issue move` |`m`, `mv`
 |`issue update` |`u`
+|`issue view` |`v`
 |`issue comment` |
 |`issue pr` |`pull-request`
 |`team list` |`l`, `ls`
@@ -214,6 +215,19 @@ $ lcls --state started --status "Human Review,Gate Approved" <4>
 <3> Filter by a friendly workflow status name (case-insensitive)
 <4> Combine state and status filters; both must match
 
+==== View an Issue
+
+Show full details for a single issue (title, description, and all comments):
+
+[source,sh]
+----
+$ lc issue view CRY-1234
+$ lc i v CRY-1234 <1>
+$ lc issue view CRY-1234 --output json <2>
+----
+<1> Short alias: `i` for `issue`, `v` for `view`
+<2> Output as JSON
+
 ==== Assign one or more issues to yourself (take em!)
 
 [source,sh]

app/lib/linear_cli/cli.ex

@@ -109,6 +109,7 @@ defmodule LinearCli.CLI do
       "st" => "status",
       "stat" => "status",
       "u" => "update",
+      "v" => "view",
       "pull-request" => "pr"
     },
     "team" => %{"l" => "list", "ls" => "list"},
@@ -204,6 +205,7 @@ defmodule LinearCli.CLI do
     do: run(&Commands.profile_clear/1, result, halt)
 
   defp dispatch([:issue, :list], result, halt), do: run(&Commands.issue_list/1, result, halt)
+  defp dispatch([:issue, :view], result, halt), do: run(&Commands.issue_view/1, result, halt)
   defp dispatch([:issue, :assign], result, halt), do: run(&Commands.issue_assign/1, result, halt)
   defp dispatch([:issue, :create], result, halt), do: run(&Commands.issue_create/1, result, halt)
 
@@ -684,6 +686,13 @@ defmodule LinearCli.CLI do
                 ]
               ]
             ],
+            view: [
+              name: "view",
+              about: "Show full details for a single issue",
+              args: [
+                issue_id: [value_name: "ISSUE_ID", help: "The Issue (i.e. CRY-1)", required: true]
+              ]
+            ],
             assign: [
               name: "assign",
               about: "Assign an issue to a team member",

app/lib/linear_cli/cli/commands.ex

@@ -286,6 +286,21 @@ defmodule LinearCli.CLI.Commands do
     end
   end
 
+  @doc """
+  Shows full details for a single issue - equivalent to `issue list --full ISSUE_ID`.
+
+  Mirrors `gh issue view`: a dedicated verb for the single-issue display case,
+  making it discoverable without knowing about `list`'s `--full` flag.
+  """
+  def issue_view(%{args: %{issue_id: issue_id}, options: options}) do
+    expanded_id = IssueHelpers.expand_issue_id(issue_id)
+
+    with {:ok, [issue]} <- Linear.issues(%{ids: [expanded_id]}) do
+      Display.show(issue, %{output: options.output, full: true})
+      :ok
+    end
+  end
+
   defp resolve_project_id(nil, _team_key), do: {:ok, nil}
 
   defp resolve_project_id(search, team_key) when is_binary(team_key) do

app/test/linear_cli/cli/issue_commands_test.exs

@@ -512,6 +512,66 @@ defmodule LinearCli.CLI.IssueCommandsTest do
     end
   end
 
+  describe "issue view" do
+    test "prints full issue details (header, description, state)" do
+      Req.Test.stub(LinearCli.Api, fn conn ->
+        {:ok, body, conn} = Plug.Conn.read_body(conn)
+        %{"query" => _} = Jason.decode!(body)
+
+        Req.Test.json(conn, %{
+          "data" => %{
+            "issue" =>
+              issue_map(%{
+                "state" => %{"id" => "s1", "name" => "In Progress", "type" => "started"}
+              })
+          }
+        })
+      end)
+
+      output =
+        capture_io(fn ->
+          assert :ok = LinearCli.CLI.main(["issue", "view", "CRY-1"])
+        end)
+
+      assert output =~ "CRY-1"
+      assert output =~ "Fix the thing"
+      assert output =~ "[In Progress]"
+    end
+
+    test "outputs JSON when --output json is given" do
+      Req.Test.stub(LinearCli.Api, fn conn ->
+        {:ok, body, conn} = Plug.Conn.read_body(conn)
+        %{"query" => _} = Jason.decode!(body)
+        Req.Test.json(conn, %{"data" => %{"issue" => issue_map()}})
+      end)
+
+      output =
+        capture_io(fn ->
+          assert :ok = LinearCli.CLI.main(["issue", "view", "CRY-1", "--output", "json"])
+        end)
+
+      decoded = Jason.decode!(output)
+      assert decoded["identifier"] == "CRY-1"
+      assert decoded["title"] == "Fix the thing"
+    end
+
+    test "lc i v ISSUE_ID alias routes to issue view" do
+      Req.Test.stub(LinearCli.Api, fn conn ->
+        {:ok, body, conn} = Plug.Conn.read_body(conn)
+        %{"query" => _} = Jason.decode!(body)
+        Req.Test.json(conn, %{"data" => %{"issue" => issue_map()}})
+      end)
+
+      output =
+        capture_io(fn ->
+          assert :ok = LinearCli.CLI.main(["i", "v", "CRY-1"])
+        end)
+
+      assert output =~ "CRY-1"
+      assert output =~ "Fix the thing"
+    end
+  end
+
   describe "issue create (Ruby: commands/issue/create.rb)" do
     test "resolves every field, declines to take it, and displays the created issue" do
       stub_responses([