feat(logs): Improve logs streaming and backlog delivery; add CLI filters and ndjson output

readme.md

@@ -177,11 +177,15 @@ Watch:       disabled
 
 #### `tspm logs <id|id:N|name:LABEL> [options]`
 
-View process logs (stdout and stderr combined).
+View and stream process logs (stdout, stderr, and system messages).
 
 **Options:**
-- `--lines <n>` - Number of lines to display (default: 50)
-- `--follow` - Stream logs in real-time (like `tail -f`)
+- `--lines <n>`           Number of lines to show (default: 50)
+- `--since <dur>`         Only show logs since duration (e.g., `10m`, `2h`, `1d`; units: `ms|s|m|h|d`)
+- `--stderr-only`         Only show stderr logs
+- `--stdout-only`         Only show stdout logs
+- `--ndjson`              Output each log as JSON line (timestamp in ms)
+- `--follow`              Stream logs in real-time (like `tail -f`)
 
 ```bash
 # View last 50 lines
@@ -190,10 +194,20 @@ tspm logs name:my-server
 # View last 100 lines
 tspm logs name:my-server --lines 100
 
-# Follow logs in real-time
+# Only stderr for the last 10 minutes (as NDJSON)
+tspm logs name:my-server --since 10m --stderr-only --ndjson
+
+# Follow logs in real time (prints recent lines, then streams backlog incrementally and live logs)
 tspm logs name:my-server --follow
+
+# Follow only stdout since 2h ago
+tspm logs name:my-server --follow --since 2h --stdout-only
 ```
 
+Notes:
+- Follow mode prints a small recent backlog, then streams older entries incrementally (to avoid large payloads) and continues with live logs.
+- Log sequences are restart-aware; TSPM detects run changes and keeps output consistent across restarts.
+
 ### Batch Operations
 
 #### `tspm start-all`
@@ -285,6 +299,18 @@ Processes:   5
 Socket:      /home/user/.tspm/tspm.sock
 ```
 
+#### Version check and service refresh
+
+Check CLI vs daemon versions and refresh the systemd service if they differ:
+
+```bash
+tspm -v
+# tspm CLI: 5.x.y
+# Daemon: running v5.x.z (pid 1234)
+# Version mismatch detected → optionally refresh the systemd service (equivalent to `tspm disable && tspm enable`).
+```
+This is helpful after upgrades where the system service still references an older CLI path.
+
 ### System Service Management
 
 Run TSPM as a system service (systemd) for production deployments.