Add share command with subcommands and completion supportMVP

The share command now supports `list`, `see`, and merging operations
with conflict resolution modes (--safe, --skip, --overwrite, --reject).
Updated help documentation in both English and Chinese locales, and
added Bash and PowerShell completion scripts.

2 files changed, 69 insertions, 2 deletions

diff --git a/scripts/completions/bash/completion_jv.sh b/scripts/completions/bash/completion_jv.sh
index 4023e42..364df9d 100644
--- a/scripts/completions/bash/completion_jv.sh
+++ b/scripts/completions/bash/completion_jv.sh
@@ -18,7 +18,7 @@ _jv_completion() {
     local base_commands="create init direct unstain account update \
                          sheet status here move mv docs exit use sheets accounts \
                          as make drop track hold throw login \
-                         jump align info"
+                         jump align info share"
 
     # Subcommands - Account
     local account_commands="list as add remove movekey mvkey mvk genpub help"
@@ -157,6 +157,40 @@ _jv_completion() {
         return 0
     fi
 
+    # Completion share
+    if [[ "$subcmd" == "share" ]]; then
+        if [[ $cword -eq 2 ]]; then
+            # First parameter: list, see, jv share list --raw results, or files
+            local share_list
+            share_list=$($cmd share list --raw 2>/dev/null)
+            local first_param_options="list see $share_list"
+            COMPREPLY=($(compgen -W "$first_param_options" -f -- "$cur"))
+        elif [[ $cword -eq 3 ]]; then
+            # Second parameter: depends on first parameter
+            local first_param="${words[2]}"
+
+            if [[ "$first_param" == "list" ]]; then
+                # list -> nothing
+                COMPREPLY=()
+            elif [[ "$first_param" == "see" ]]; then
+                # see -> jv share list --raw results
+                local share_list
+                share_list=$($cmd share list --raw 2>/dev/null)
+                COMPREPLY=($(compgen -W "$share_list" -- "$cur"))
+            elif [[ "$first_param" == *"@"* ]]; then
+                # Contains "@" (shareid) -> show options
+                COMPREPLY=($(compgen -W "--safe --overwrite --skip --reject" -- "$cur"))
+            else
+                # File input -> show jv sheet list --all --raw results
+                local all_sheets
+                all_sheets=$($cmd sheet list --all --raw 2>/dev/null)
+                COMPREPLY=($(compgen -W "$all_sheets" -- "$cur"))
+            fi
+        fi
+        # Third parameter: no completion
+        return 0
+    fi
+
     # Completion login
     if [[ "$subcmd" == "login" ]]; then
         if [[ $cword -eq 2 ]]; then
diff --git a/scripts/completions/powershell/completion_jv.ps1 b/scripts/completions/powershell/completion_jv.ps1
index 0c854e3..84ba01a 100644
--- a/scripts/completions/powershell/completion_jv.ps1
+++ b/scripts/completions/powershell/completion_jv.ps1
@@ -16,7 +16,7 @@ Register-ArgumentCompleter -Native -CommandName jv -ScriptBlock {
         "create", "init", "direct", "unstain", "account", "update",
         "sheet", "status", "here", "move", "mv", "docs", "exit", "use", "sheets", "accounts",
         "as", "make", "drop", "track", "hold", "throw", "login",
-        "jump", "align", "info"
+        "jump", "align", "info", "share"
     )
 
     # Account subcommands
@@ -175,6 +175,39 @@ Register-ArgumentCompleter -Native -CommandName jv -ScriptBlock {
         return @()
     }
 
+    # Completion for share command
+    if ($subcmd -eq "share") {
+        if ($currentIndex -eq 2) {
+            # First parameter: list, see, jv share list --raw results, or files in current directory
+            $staticOptions = @("list", "see")
+            $shareList = & $cmd share list --raw 2>$null
+            $files = Get-ChildItem -Name -File -Path "." 2>$null
+            $completions = $staticOptions + $shareList + $files
+            return $completions | Where-Object { $_ -like "$wordToComplete*" }
+        } elseif ($currentIndex -eq 3) {
+            # Second parameter: depends on the first parameter
+            $firstParam = $words[2]
+            if ($firstParam -eq "list") {
+                # list -> nothing
+                return @()
+            } elseif ($firstParam -eq "see") {
+                # see -> jv share list --raw results
+                $shareList = & $cmd share list --raw 2>$null
+                return $shareList | Where-Object { $_ -like "$wordToComplete*" }
+            } elseif ($firstParam -like "*@*") {
+                # Contains "@" (shareid) -> show options
+                $options = @("--safe", "--overwrite", "--skip", "--reject")
+                return $options | Where-Object { $_ -like "$wordToComplete*" }
+            } else {
+                # Otherwise, assume it's a file -> show jv sheet list --all --raw results
+                $allSheets = & $cmd sheet list --all --raw 2>$null
+                return $allSheets | Where-Object { $_ -like "$wordToComplete*" }
+            }
+        }
+        # Third parameter: no completion
+        return @()
+    }
+
     # Aliases completion
     switch ($subcmd) {
         "as" {