Move HTTP runtime session adapters into enclave to break http->enclave/node cycles

Relocate src/http/http_session.h, http2_session.h, and http_rpc_context.h
into src/enclave/, preserving their http:: namespace and type names.
These are internal runtime adapters that bind the HTTP protocol layer to
enclave session/RPC machinery and ccf::RpcContextImpl (in src/node), so
they belonged with their consumers rather than with the protocol-only
http component.

Update all in-tree consumers (rpc_sessions.h, forwarder.h,
jwt_key_auto_refresh.h) to the new paths, and drop the now-unused
http_rpc_context.h include from frontend.h. Make the moved headers
self-contained by including enclave/rpc_handler.h and enclave/rpc_map.h
directly, and updating relative http/ includes to explicit paths.

Clean incidental http -> enclave edges from the remaining protocol
headers: http2_parser.h and http_proc.h no longer include
enclave/session.h and enclave/tls_session.h respectively (unused),
and http_parser.h drops enclave/tls_session.h in favour of a direct
ds/internal_logger.h include for the logging macros it actually uses.

Extend scripts/source-dependencies.json with the http component's
final allowed dependencies (ccf-api, crypto, ds, uv), matching the
acyclic policy already enforced for other components. The dependency
checker confirms no remaining http -> enclave, http -> host, or
http -> node edges.

Layer 2 of the acyclic source components stack, based on #8281.
Refs #3517.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: achamayou

scripts/source-dependencies.json

@@ -33,6 +33,7 @@
     "threading": [],
     "tls": ["crypto", "ds"],
     "udp": ["ds"],
-    "uv": []
+    "uv": [],
+    "http": ["ccf-api", "crypto", "ds", "uv"]
   }
 }

src/http/http2_session.h src/enclave/http2_session.hsrc/http/http2_session.h renamed to src/enclave/http2_session.h

@@ -4,10 +4,10 @@
 
 #include "ds/internal_logger.h"
 #include "enclave/rpc_map.h"
-#include "error_reporter.h"
+#include "http/error_reporter.h"
+#include "http/http2_parser.h"
 #include "http/http2_types.h"
-#include "http2_parser.h"
-#include "http_responder.h"
+#include "http/http_responder.h"
 #include "http_rpc_context.h"
 
 namespace http

src/http/http_rpc_context.h src/enclave/http_rpc_context.hsrc/http/http_rpc_context.h renamed to src/enclave/http_rpc_context.h

@@ -5,7 +5,9 @@
 #include "ccf/odata_error.h"
 #include "ccf/rpc_context.h"
 #include "ds/actors.h"
-#include "http_parser.h"
+#include "enclave/rpc_handler.h"
+#include "enclave/rpc_map.h"
+#include "http/http_parser.h"
 #include "node/rpc_context_impl.h"
 
 namespace http

src/http/http_session.h src/enclave/http_session.hsrc/http/http_session.h renamed to src/enclave/http_session.h

@@ -5,9 +5,9 @@
 #include "ds/internal_logger.h"
 #include "enclave/rpc_handler.h"
 #include "enclave/rpc_map.h"
-#include "error_reporter.h"
-#include "http_parser.h"
-#include "http_responder.h"
+#include "http/error_reporter.h"
+#include "http/http_parser.h"
+#include "http/http_responder.h"
 #include "http_rpc_context.h"
 
 namespace http

src/enclave/rpc_sessions.h

@@ -8,9 +8,9 @@
 #include "ds/serialized.h"
 #include "enclave/session.h"
 #include "forwarder_types.h"
-#include "http/http2_session.h"
 #include "http/http_responder.h"
-#include "http/http_session.h"
+#include "http2_session.h"
+#include "http_session.h"
 #include "node/rpc/custom_protocol_subsystem.h"
 #include "node/session_metrics.h"
 #include "rpc_handler.h"

src/http/http2_parser.h

@@ -4,11 +4,9 @@
 
 #include "ccf/ds/nonstd.h"
 #include "ds/internal_logger.h"
-#include "enclave/session.h"
 #include "http2_callbacks.h"
 #include "http2_types.h"
 #include "http_proc.h"
-#include "http_rpc_context.h"
 
 #include <utility>
 

src/http/http_parser.h

@@ -5,7 +5,7 @@
 #include "ccf/ds/hex.h"
 #include "ccf/http_configuration.h"
 #include "ccf/http_query.h"
-#include "enclave/tls_session.h"
+#include "ds/internal_logger.h"
 #include "http/http_exceptions.h"
 #include "http_builder.h"
 #include "http_proc.h"

src/http/http_proc.h

@@ -2,7 +2,6 @@
 // Licensed under the Apache 2.0 License.
 #pragma once
 
-#include "enclave/tls_session.h"
 #include "http2_types.h"
 #include "http_builder.h"
 

src/node/jwt_key_auto_refresh.h

@@ -5,9 +5,9 @@
 #include "ccf/ds/json.h"
 #include "ccf/ds/nonstd.h"
 #include "ccf/service/tables/jwt.h"
+#include "enclave/http_rpc_context.h"
 #include "http/curl.h"
 #include "http/http_builder.h"
-#include "http/http_rpc_context.h"
 #include "node/rpc/node_frontend.h"
 #include "tasks/basic_task.h"
 #include "tasks/task_system.h"

src/node/rpc/forwarder.h

@@ -3,8 +3,8 @@
 #pragma once
 
 #include "enclave/forwarder_types.h"
+#include "enclave/http_rpc_context.h"
 #include "enclave/rpc_map.h"
-#include "http/http_rpc_context.h"
 #include "kv/kv_types.h"
 #include "node/node_to_node.h"
 #include "tasks/basic_task.h"