feat(agent): deprecate and completely remove cline agent support

- Delete adapters/cline.py and unregister from registry.py
- Remove cline branches from lib.sh and all 8 skill scripts (create, resume, stop, status, reconcile, update_yaml_resumed, resolve_session_id, orc_onboard)
- Narrow own-key mapping dictionaries across lib_py core modules to 4 supported agents
- Delete cline-exclusive tests and retarget shared fixtures to grok/hermes/claude
- Update skills documentation and installation guides (439 passed, 0 failures)
- Archive cline deprecation consensus and review reports

.agents/skills/multi-agent-mux-orc-onboard/SKILL.md

@@ -8,7 +8,7 @@ platforms: [linux, macos]
 environments: [terminal, herdr]
 metadata:
   hermes:
-    tags: [agent, herdr, claude, antigravity, agy, cline, hermes, grok, orchestrator, onboard, isolation]
+    tags: [agent, herdr, claude, antigravity, agy, hermes, grok, orchestrator, onboard, isolation]
     related_skills: [multi-agent-mux-create, multi-agent-mux-resume, multi-agent-mux-monitor]
     prereq_skills: [multi-agent-mux-create]
 ---
@@ -24,7 +24,7 @@ Registers an orchestrator session UUID into the `orchestrator_uuids` list of `.m
 ```
 
 ### Options
-- `--uuid <uuid>`: Explicitly register the specified orchestrator session UUID (UUID format or cline ID format).
+- `--uuid <uuid>`: Explicitly register the specified orchestrator session UUID.
 - `--remove <uuid>`: Remove the specified UUID from the `orchestrator_uuids` list.
 - `--list`: Display all currently registered orchestrator UUIDs.
 - `--no-autodetect`: Disable process ancestry auto-detection when `--uuid` is not provided.
@@ -32,18 +32,16 @@ Registers an orchestrator session UUID into the `orchestrator_uuids` list of `.m
 
 ## Auto-Detection Hierarchy (Rev.2)
 
-When `--uuid` is omitted, `orc_onboard.sh` inspects the process ancestry tree of the nearest agent ancestor (`claude`, `agy`, `hermes`, `cline`, `grok`) in the following order:
+When `--uuid` is omitted, `orc_onboard.sh` inspects the process ancestry tree of the nearest agent ancestor (`claude`, `agy`, `hermes`, `grok`) in the following order:
 
 1. **CLI `argv`**:
    - `claude -r <uuid>` / `claude --session-id <uuid>`
    - `agy --conversation <uuid>`
-   - `cline --id <uuid>` / `cline --session-id <uuid>`
    - `grok --session-id <uuid>` / `grok --resume <uuid>`
 2. **Family-Matched Environment Variables**:
    - `claude` → `CLAUDE_CODE_SESSION_ID`
    - `agy` → `ANTIGRAVITY_CONVERSATION_ID`
    - `hermes` → `HERMES_SESSION_ID`
-   - `cline` → `CLINE_SESSION_ID`
    - `grok` → `GROK_SESSION_ID`
 3. **Fallback**:
    - If no valid ID matching the nearest agent family is found, exits with status 3 (`Could not detect orchestrator ID`).

.agents/skills/multi-agent-mux-orc-onboard/scripts/orc_onboard.sh

@@ -66,8 +66,7 @@ done
 is_valid_id() {
   local val="$1"
   local uuid_re='^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$'
-  local cline_re='^[0-9]{10,}_[0-9A-Za-z]+$'
-  if [[ "$val" =~ $uuid_re ]] || [[ "$val" =~ $cline_re ]]; then
+  if [[ "$val" =~ $uuid_re ]]; then
     return 0
   fi
   return 1
@@ -104,7 +103,7 @@ detect_nearest_agent() {
       local base
       base="$(basename "$tok")"
       case "$base" in
-        claude|agy|hermes|cline|grok)
+        claude|agy|hermes|grok)
           match="$base"
           break
           ;;
@@ -125,9 +124,6 @@ detect_nearest_agent() {
         hermes)
           detected_id=$(echo "$cmd_line" | grep -oE '(--resume|--session)[[:space:]=]+[^[:space:]]+' | head -n 1 | sed -E 's/^(--resume|--session)[[:space:]=]+//' || true)
           ;;
-        cline)
-          detected_id=$(echo "$cmd_line" | grep -oE '(--id|--session-id)[[:space:]=]+[^[:space:]]+' | head -n 1 | sed -E 's/^(--id|--session-id)[[:space:]=]+//' || true)
-          ;;
         grok)
           detected_id=$(echo "$cmd_line" | grep -oE '(--session-id|--resume)[[:space:]=]+[^[:space:]]+' | head -n 1 | sed -E 's/^(--session-id|--resume)[[:space:]=]+//' || true)
           ;;
@@ -144,7 +140,6 @@ detect_nearest_agent() {
         claude) env_var="${CLAUDE_CODE_SESSION_ID:-}" ;;
         agy) env_var="${ANTIGRAVITY_CONVERSATION_ID:-}" ;;
         hermes) env_var="${HERMES_SESSION_ID:-}" ;;
-        cline) env_var="${CLINE_SESSION_ID:-}" ;;
         grok) env_var="${GROK_SESSION_ID:-}" ;;
       esac
 
@@ -206,7 +201,7 @@ except Exception:
 target = sys.argv[1]
 for s in d.get("herdr_sessions", []):
     if s.get("status") == "running":
-        for k in ["claude_session_id_own", "agy_conversation_id_own", "hermes_conversation_id_own", "cline_conversation_id_own", "grok_session_id_own"]:
+        for k in ["claude_session_id_own", "agy_conversation_id_own", "hermes_conversation_id_own", "grok_session_id_own"]:
             if s.get(k) == target:
                 sys.exit(1)
 sys.exit(0)