chore(docs): fix remaining instances of context to self

docs/docs-developers/docs/aztec-nr/framework-description/advanced/how_to_use_capsules.md

@@ -12,8 +12,8 @@ Capsules provide per-contract non-volatile storage in the PXE. Data is stored lo
 ```rust
 use aztec::oracle::capsules;
 
-// Inside a contract function, use context.this_address() for contract_address
-let contract_address: AztecAddress = context.this_address();
+// Inside a contract function, use self.address for contract_address
+let contract_address: AztecAddress = self.address();
 let slot: Field = 1;
 
 // Store data at a slot (overwrites existing data)

docs/docs-developers/docs/aztec-nr/framework-description/globals.md

@@ -23,23 +23,23 @@ The following fields are accessible via `context` methods:
 The unique identifier for the Aztec network instance (not the Ethereum chain the rollup settles to).
 
 ```rust
-context.chain_id();
+self.context.chain_id();
 ```
 
 ### Version
 
 The Aztec protocol version number. The genesis block has version 1.
 
 ```rust
-context.version();
+self.context.version();
 ```
 
 ### Gas Settings
 
 The gas limits, max fees per gas, and inclusion fee set by the user for the transaction.
 
 ```rust
-context.gas_settings();
+self.context.gas_settings();
 ```
 
 ## Public Global Variables
@@ -59,27 +59,27 @@ Public functions have access to `chain_id()` and `version()` (same syntax as pri
 The unix timestamp when the block is executed. Provided by the block proposer, so it may have slight variance. Always increases monotonically.
 
 ```rust
-context.timestamp();
+self.context.timestamp();
 ```
 
 ### Block Number
 
 The sequential block identifier. Genesis block is 1, incrementing by 1 for each subsequent block.
 
 ```rust
-context.block_number();
+self.context.block_number();
 ```
 
 ### Gas Fees
 
 The current L2 and DA gas prices for the block. You can access gas-related information via:
 
 ```rust
-context.l2_gas_left();       // Remaining L2 gas
-context.da_gas_left();       // Remaining DA gas
-context.base_fee_per_l2_gas(); // L2 gas price
-context.base_fee_per_da_gas(); // DA gas price
-context.transaction_fee();   // Final tx fee (only available in teardown phase)
+self.context.l2_gas_left();       // Remaining L2 gas
+self.context.da_gas_left();       // Remaining DA gas
+self.context.base_fee_per_l2_gas(); // L2 gas price
+self.context.base_fee_per_da_gas(); // DA gas price
+self.context.transaction_fee();   // Final tx fee (only available in teardown phase)
 ```
 
 :::info Why do available globals differ between environments?

docs/docs-developers/docs/aztec-nr/framework-description/how_to_implement_custom_notes.md

@@ -161,7 +161,7 @@ impl NoteHash for CustomHashNote {
     ) -> Field {
         // Standard nullifier using owner's nullifier secret key
         let owner_npk_m = aztec::keys::getters::get_public_keys(owner).npk_m;
-        let secret = context.request_nsk_app(owner_npk_m.hash());
+        let secret = self.context.request_nsk_app(owner_npk_m.hash());
         poseidon2_hash_with_separator(
             [note_hash_for_nullification, secret],
             DOM_SEP__NOTE_NULLIFIER,

docs/docs-developers/docs/foundational-topics/advanced/authwit.md

@@ -138,9 +138,9 @@ You can cancel an authwit before it's used by emitting its nullifier directly. T
 
 ```rust
 fn cancel_authwit(inner_hash: Field) {
-    let on_behalf_of = context.msg_sender();
+    let on_behalf_of = self.msg_sender();
     let nullifier = compute_authwit_nullifier(on_behalf_of, inner_hash);
-    context.push_nullifier(nullifier);
+    self.context.push_nullifier(nullifier);
 }
 ```