PCSM-219: Undo README changes

Author: chupe

README.md

@@ -145,15 +145,12 @@ curl http://localhost:2242/status
 
 When starting the PCSM server, you can use the following options:
 
-| Option                           | CLI Flag                           | Default | Description                          |
-|----------------------------------|------------------------------------|---------|--------------------------------------|
-| Port                             | `--port`                           | 2242    | Port on which the server listens     |
-| Source URI                       | `--source`                         | -       | MongoDB connection string for source |
-| Target URI                       | `--target`                         | -       | MongoDB connection string for target |
-| Log Level                        | `--log-level`                      | info    | Log level (trace/debug/info/warn/error/fatal/panic) |
-| Log JSON                         | `--log-json`                       | false   | Output log in JSON format            |
-| No Color                         | `--no-color`                       | false   | Disable log ASCII color              |
-| MongoDB Operation Timeout        | `--mongodb-cli-operation-timeout`  | 5m      | Timeout for MongoDB operations       |
+- `--port`: The port on which the server will listen (default: 2242)
+- `--source`: The MongoDB connection string for the source cluster
+- `--target`: The MongoDB connection string for the target cluster
+- `--log-level`: The log level (default: "info")
+- `--log-json`: Output log in JSON format with disabled color
+- `--no-color`: Disable log ASCI color
 
 Example:
 
@@ -163,52 +160,14 @@ bin/pcsm \
     --target <target-mongodb-uri> \
     --port 2242 \
     --log-level debug \
-    --log-json \
-    --mongodb-cli-operation-timeout 10m
+    --log-json
 ```
 
 ## Environment Variables
 
-The following environment variables are supported:
-
-| Option                     | Env Var                              | Default | Description                          |
-|----------------------------|--------------------------------------|---------|--------------------------------------|
-| Source URI                 | `PCSM_SOURCE_URI`                    | -       | MongoDB connection string for source |
-| Target URI                 | `PCSM_TARGET_URI`                    | -       | MongoDB connection string for target |
-| Port                       | `PCSM_PORT`                          | 2242    | Port on which the server listens     |
-| Log Level                  | `PCSM_LOG_LEVEL`                     | info    | Log level                            |
-| Log JSON                   | `PCSM_LOG_JSON`                      | false   | Output log in JSON format            |
-| No Color                   | `PCSM_NO_COLOR`                      | false   | Disable log ASCII color              |
-| MongoDB Operation Timeout  | `PCSM_MONGODB_CLI_OPERATION_TIMEOUT` | 5m      | Timeout for MongoDB operations       |
-| Use Collection Bulk Write  | `PCSM_USE_COLLECTION_BULK_WRITE`     | false   | Use collection-level bulk write (internal) |
-
-> **Note**: Clone tuning options (see below) are intentionally NOT supported via environment variables. They are configurable via CLI flags and HTTP request parameters only.
-
-## Clone Tuning Options
-
-Advanced tuning options for the clone process. These are available via CLI flags
-and HTTP request parameters, but NOT via environment variables.
-
-| CLI Flag                           | HTTP Parameter                | Default  | Range       | Description                        |
-|------------------------------------|-------------------------------|----------|-------------|------------------------------------|
-| `--clone-num-parallel-collections` | `cloneNumParallelCollections` | 2        | 0-100       | Collections to clone in parallel   |
-| `--clone-num-read-workers`         | `cloneNumReadWorkers`         | auto (0) | 0-1000      | Read workers during clone          |
-| `--clone-num-insert-workers`       | `cloneNumInsertWorkers`       | auto (0) | 0-1000      | Insert workers during clone        |
-| `--clone-segment-size`             | `cloneSegmentSize`            | auto     | ~475MB-64GB | Segment size for parallel cloning  |
-| `--clone-read-batch-size`          | `cloneReadBatchSize`          | ~47.5MB  | 16MiB-2GiB  | Read cursor batch size             |
-
-> **Note**: These CLI flags are hidden from `--help` output. They are intended for advanced tuning only.
-> Setting a value to 0 or empty string uses the automatic/default behavior.
-
-Example CLI usage:
-
-```sh
-bin/pcsm \
-    --source <source-mongodb-uri> \
-    --target <target-mongodb-uri> \
-    --clone-num-parallel-collections 8 \
-    --clone-num-read-workers 16
-```
+- `PCSM_SOURCE_URI`: MongoDB connection string for the source cluster.
+- `PCSM_TARGET_URI`: MongoDB connection string for the target cluster.
+- `PCSM_MONGODB_CLI_OPERATION_TIMEOUT`: Timeout for MongoDB client operations; accepts Go durations like `30s`, `2m`, `1h` (default: `5m`).
 
 ## Log JSON Fields
 
@@ -247,19 +206,10 @@ Starts the replication process.
 
 #### Request Body
 
-| Parameter                     | Type     | Description                                     |
-|-------------------------------|----------|-------------------------------------------------|
-| `includeNamespaces`           | string[] | Namespaces to include in replication            |
-| `excludeNamespaces`           | string[] | Namespaces to exclude from replication          |
-| `cloneNumParallelCollections` | int      | Collections to clone in parallel (0-100)        |
-| `cloneNumReadWorkers`         | int      | Read workers during clone (0-1000)              |
-| `cloneNumInsertWorkers`       | int      | Insert workers during clone (0-1000)            |
-| `cloneSegmentSize`            | string   | Segment size (e.g., "500MB", "1GiB")            |
-| `cloneReadBatchSize`          | string   | Read batch size (e.g., "32MiB")                 |
-
-> **Note**: HTTP request values take precedence over CLI flag values for clone tuning options.
+- `includeNamespaces` (optional): List of namespaces to include in the replication.
+- `excludeNamespaces` (optional): List of namespaces to exclude from the replication.
 
-Example (basic):
+Example:
 
 ```json
 {
@@ -268,17 +218,6 @@ Example (basic):
 }
 ```
 
-Example (with clone tuning):
-
-```json
-{
-    "includeNamespaces": ["mydb.*"],
-    "cloneNumParallelCollections": 8,
-    "cloneNumReadWorkers": 16,
-    "cloneSegmentSize": "500MB"
-}
-```
-
 #### Response
 
 - `ok`: Boolean indicating if the operation was successful.